32138892 has 18 divisors (see below), whose sum is σ = 81240068. Its totient is φ = 10712952.

The previous prime is 32138881. The next prime is 32138917. The reversal of 32138892 is 29883123.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 892747 = 32138892 / (3 + 2 + 1 + 3 + 8 + 8 + 9 + 2).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 446338 + ... + 446409.

Almost surely, 2^32138892 is an apocalyptic number.

It is an amenable number.

32138892 is an abundant number, since it is smaller than the sum of its proper divisors (49101176).

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

32138892 is a wasteful number, since it uses less digits than its factorization.

32138892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 892757 (or 892752 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 32138892 is about 5669.1173916228. The cubic root of 32138892 is about 317.9388751627.

The spelling of 32138892 in words is "thirty-two million, one hundred thirty-eight thousand, eight hundred ninety-two".