45071232 has 32 divisors (see below), whose sum is σ = 119721480. Its totient is φ = 15023616.

The previous prime is 45071231. The next prime is 45071239. The reversal of 45071232 is 23217054.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45071231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58303 + ... + 59070.

Almost surely, 2^45071232 is an apocalyptic number.

It is an amenable number.

45071232 is an abundant number, since it is smaller than the sum of its proper divisors (74650248).

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

45071232 is a wasteful number, since it uses less digits than its factorization.

45071232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117390 (or 117378 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 45071232 is about 6713.5111528916. The cubic root of 45071232 is about 355.8769090082.

Adding to 45071232 its reverse (23217054), we get a palindrome (68288286).

The spelling of 45071232 in words is "forty-five million, seventy-one thousand, two hundred thirty-two".