2315628 has 60 divisors (see below), whose sum is σ = 6925072. Its totient is φ = 660960.

The previous prime is 2315611. The next prime is 2315629. The reversal of 2315628 is 8265132.

2315628 is a `hidden beast` number, since 2 + 31 + 5 + 628 = 666.

2315628 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (2315629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1758 + ... + 2778.

2^2315628 is an apocalyptic number.

2315628 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2315628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3462536).

2315628 is an abundant number, since it is smaller than the sum of its proper divisors (4609444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2315628 is a wasteful number, since it uses less digits than its factorization.

2315628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1044 (or 1033 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 2315628 is about 1521.7187650811. The cubic root of 2315628 is about 132.2989093960.

It can be divided in two parts, 23 and 15628, that added together give a palindrome (15651).

The spelling of 2315628 in words is "two million, three hundred fifteen thousand, six hundred twenty-eight".