2152422 has 24 divisors (see below), whose sum is σ = 4694976. Its totient is φ = 712656.

The previous prime is 2152399. The next prime is 2152427. The reversal of 2152422 is 2242512.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a d-powerful number, because it can be written as 2⁷ + 1 + 5⁹ + 2⁹ + 4⁸ + 2¹¹ + 2¹⁷ .

It is a junction number, because it is equal to n+sod(n) for n = 2152395 and 2152404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2152427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3243 + ... + 3849.

It is an arithmetic number, because the mean of its divisors is an integer number (195624).

2^2152422 is an apocalyptic number.

2152422 is an abundant number, since it is smaller than the sum of its proper divisors (2542554).

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

2152422 is a wasteful number, since it uses less digits than its factorization.

2152422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812 (or 809 counting only the distinct ones).

The product of its digits is 320, while the sum is 18.

The square root of 2152422 is about 1467.1134925424. The cubic root of 2152422 is about 129.1147347715.

Adding to 2152422 its reverse (2242512), we get a palindrome (4394934).

The spelling of 2152422 in words is "two million, one hundred fifty-two thousand, four hundred twenty-two".