2345728 has 108 divisors (see below), whose sum is σ = 6291432. Its totient is φ = 860160.

The previous prime is 2345713. The next prime is 2345729. The reversal of 2345728 is 8275432.

It is a self number, because there is not a number n which added to its sum of digits gives 2345728.

It is not an unprimeable number, because it can be changed into a prime (2345729) 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, 137976 + ... + 137992.

It is an arithmetic number, because the mean of its divisors is an integer number (58254).

2^2345728 is an apocalyptic number.

2345728 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 2345728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3145716).

2345728 is an abundant number, since it is smaller than the sum of its proper divisors (3945704).

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

2345728 is a wasteful number, since it uses less digits than its factorization.

2345728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58 (or 37 counting only the distinct ones).

The product of its digits is 13440, while the sum is 31.

The square root of 2345728 is about 1531.5769650919. The cubic root of 2345728 is about 132.8696784388.

The spelling of 2345728 in words is "two million, three hundred forty-five thousand, seven hundred twenty-eight".