36472644 has 36 divisors (see below), whose sum is σ = 99287916. Its totient is φ = 11222208.

The previous prime is 36472637. The next prime is 36472649. The reversal of 36472644 is 44627463.

36472644 is a `hidden beast` number, since 3 + 6 + 4 + 7 + 2 + 644 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 9847044 + 26625600 = 3138^2 + 5160^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a junction number, because it is equal to n+sod(n) for n = 36472599 and 36472608.

It is not an unprimeable number, because it can be changed into a prime (36472649) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38499 + ... + 39434.

Almost surely, 2^36472644 is an apocalyptic number.

It is an amenable number.

36472644 is an abundant number, since it is smaller than the sum of its proper divisors (62815272).

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

36472644 is a wasteful number, since it uses less digits than its factorization.

36472644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77956 (or 77951 counting only the distinct ones).

The product of its digits is 96768, while the sum is 36.

The square root of 36472644 is about 6039.2585637643. The cubic root of 36472644 is about 331.6314800962.

The spelling of 36472644 in words is "thirty-six million, four hundred seventy-two thousand, six hundred forty-four".