32428572 has 24 divisors (see below), whose sum is σ = 82545792. Its totient is φ = 9826800.

The previous prime is 32428567. The next prime is 32428577. The reversal of 32428572 is 27582423.

It is an interprime number because it is at equal distance from previous prime (32428567) and next prime (32428577).

It is a super-2 number, since 2×32428572² = 2103224563918368, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32428577) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122704 + ... + 122967.

It is an arithmetic number, because the mean of its divisors is an integer number (3439408).

Almost surely, 2^32428572 is an apocalyptic number.

It is an amenable number.

32428572 is an abundant number, since it is smaller than the sum of its proper divisors (50117220).

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

32428572 is a wasteful number, since it uses less digits than its factorization.

32428572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245689 (or 245687 counting only the distinct ones).

The product of its digits is 26880, while the sum is 33.

The square root of 32428572 is about 5694.6090295998. The cubic root of 32428572 is about 318.8912539647.

The spelling of 32428572 in words is "thirty-two million, four hundred twenty-eight thousand, five hundred seventy-two".