28371632 has 10 divisors (see below), whose sum is σ = 54970068. Its totient is φ = 14185808.

The previous prime is 28371583. The next prime is 28371647. The reversal of 28371632 is 23617382.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 886598 + ... + 886629.

Almost surely, 2^28371632 is an apocalyptic number.

It is an amenable number.

28371632 is a deficient number, since it is larger than the sum of its proper divisors (26598436).

28371632 is a wasteful number, since it uses less digits than its factorization.

28371632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1773235 (or 1773229 counting only the distinct ones).

The product of its digits is 12096, while the sum is 32.

The square root of 28371632 is about 5326.5027926398. The cubic root of 28371632 is about 304.9964417752.

The spelling of 28371632 in words is "twenty-eight million, three hundred seventy-one thousand, six hundred thirty-two".