28603232 has 48 divisors (see below), whose sum is σ = 64864800. Its totient is φ = 12162048.

The previous prime is 28603229. The next prime is 28603241. The reversal of 28603232 is 23230682.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32948 + ... + 33804.

It is an arithmetic number, because the mean of its divisors is an integer number (1351350).

Almost surely, 2^28603232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28603232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32432400).

28603232 is an abundant number, since it is smaller than the sum of its proper divisors (36261568).

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

28603232 is a wasteful number, since it uses less digits than its factorization.

28603232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023 (or 1015 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 28603232 is about 5348.1989491791. The cubic root of 28603232 is about 305.8240975729.

The spelling of 28603232 in words is "twenty-eight million, six hundred three thousand, two hundred thirty-two".