28359432 has 48 divisors (see below), whose sum is σ = 77117040. Its totient is φ = 9415008.

The previous prime is 28359431. The next prime is 28359473. The reversal of 28359432 is 23495382.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (28359431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21463 + ... + 22745.

It is an arithmetic number, because the mean of its divisors is an integer number (1606605).

Almost surely, 2^28359432 is an apocalyptic number.

It is an amenable number.

28359432 is an abundant number, since it is smaller than the sum of its proper divisors (48757608).

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

28359432 is a wasteful number, since it uses less digits than its factorization.

28359432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1602 (or 1595 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 28359432 is about 5325.3574527913. The cubic root of 28359432 is about 304.9527186405.

The spelling of 28359432 in words is "twenty-eight million, three hundred fifty-nine thousand, four hundred thirty-two".