32489172 has 18 divisors (see below), whose sum is σ = 82125498. Its totient is φ = 10829712.

The previous prime is 32489167. The next prime is 32489201. The reversal of 32489172 is 27198423.

32489172 is a `hidden beast` number, since 3 + 2 + 489 + 172 = 666.

It can be written as a sum of positive squares in only one way, i.e., 30074256 + 2414916 = 5484^2 + 1554^2 .

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: 902477 = 32489172 / (3 + 2 + 4 + 8 + 9 + 1 + 7 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 451203 + ... + 451274.

Almost surely, 2^32489172 is an apocalyptic number.

It is an amenable number.

32489172 is an abundant number, since it is smaller than the sum of its proper divisors (49636326).

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

32489172 is a wasteful number, since it uses less digits than its factorization.

32489172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902487 (or 902482 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 32489172 is about 5699.9273679583. The cubic root of 32489172 is about 319.0897701055.

The spelling of 32489172 in words is "thirty-two million, four hundred eighty-nine thousand, one hundred seventy-two".