28925432 has 24 divisors (see below), whose sum is σ = 57617760. Its totient is φ = 13610880.

The previous prime is 28925419. The next prime is 28925437. The reversal of 28925432 is 23452982.

It is a junction number, because it is equal to n+sod(n) for n = 28925392 and 28925401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28925437) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3944 + ... + 8567.

It is an arithmetic number, because the mean of its divisors is an integer number (2400740).

Almost surely, 2^28925432 is an apocalyptic number.

It is an amenable number.

28925432 is a deficient number, since it is larger than the sum of its proper divisors (28692328).

28925432 is a wasteful number, since it uses less digits than its factorization.

28925432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12551 (or 12530 counting only the distinct ones).

The product of its digits is 34560, while the sum is 35.

The square root of 28925432 is about 5378.2368858205. The cubic root of 28925432 is about 306.9681272106.

The spelling of 28925432 in words is "twenty-eight million, nine hundred twenty-five thousand, four hundred thirty-two".