28735372 has 48 divisors (see below), whose sum is σ = 58544640. Its totient is φ = 12241152.

The previous prime is 28735363. The next prime is 28735373. The reversal of 28735372 is 27353782.

It is not an unprimeable number, because it can be changed into a prime (28735373) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29233 + ... + 30199.

It is an arithmetic number, because the mean of its divisors is an integer number (1219680).

Almost surely, 2^28735372 is an apocalyptic number.

It is an amenable number.

28735372 is an abundant number, since it is smaller than the sum of its proper divisors (29809268).

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

28735372 is a wasteful number, since it uses less digits than its factorization.

28735372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1030 (or 1028 counting only the distinct ones).

The product of its digits is 70560, while the sum is 37.

The square root of 28735372 is about 5360.5384057947. The cubic root of 28735372 is about 306.2943186174.

The spelling of 28735372 in words is "twenty-eight million, seven hundred thirty-five thousand, three hundred seventy-two".