45488172 has 24 divisors (see below), whose sum is σ = 106444800. Its totient is φ = 15119056.

The previous prime is 45488137. The next prime is 45488173. The reversal of 45488172 is 27188454.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 45488172.

It is not an unprimeable number, because it can be changed into a prime (45488173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 972 + ... + 9587.

It is an arithmetic number, because the mean of its divisors is an integer number (4435200).

Almost surely, 2^45488172 is an apocalyptic number.

It is an amenable number.

45488172 is an abundant number, since it is smaller than the sum of its proper divisors (60956628).

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

45488172 is a wasteful number, since it uses less digits than its factorization.

45488172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10925 (or 10923 counting only the distinct ones).

The product of its digits is 71680, while the sum is 39.

The square root of 45488172 is about 6744.4919749378. The cubic root of 45488172 is about 356.9709114857.

It can be divided in two parts, 4548 and 8172, that added together give a triangular number (12720 = T₁₅₉).

The spelling of 45488172 in words is "forty-five million, four hundred eighty-eight thousand, one hundred seventy-two".