28377832 has 32 divisors (see below), whose sum is σ = 61041600. Its totient is φ = 12115584.

The previous prime is 28377829. The next prime is 28377847. The reversal of 28377832 is 23877382.

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, 16719 + ... + 18337.

It is an arithmetic number, because the mean of its divisors is an integer number (1907550).

Almost surely, 2^28377832 is an apocalyptic number.

It is an amenable number.

28377832 is an abundant number, since it is smaller than the sum of its proper divisors (32663768).

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

28377832 is a wasteful number, since it uses less digits than its factorization.

28377832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1945 (or 1941 counting only the distinct ones).

The product of its digits is 112896, while the sum is 40.

The square root of 28377832 is about 5327.0847562246. The cubic root of 28377832 is about 305.0186569256.

The spelling of 28377832 in words is "twenty-eight million, three hundred seventy-seven thousand, eight hundred thirty-two".