45218712 has 64 divisors (see below), whose sum is σ = 140947200. Its totient is φ = 11744640.

The previous prime is 45218707. The next prime is 45218717. The reversal of 45218712 is 21781254.

It is an interprime number because it is at equal distance from previous prime (45218707) and next prime (45218717).

It is a self number, because there is not a number n which added to its sum of digits gives 45218712.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45218717) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10387 + ... + 14082.

It is an arithmetic number, because the mean of its divisors is an integer number (2202300).

Almost surely, 2^45218712 is an apocalyptic number.

45218712 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

45218712 is an abundant number, since it is smaller than the sum of its proper divisors (95728488).

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

45218712 is a wasteful number, since it uses less digits than its factorization.

45218712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24496 (or 24492 counting only the distinct ones).

The product of its digits is 4480, while the sum is 30.

The square root of 45218712 is about 6724.4860026622. The cubic root of 45218712 is about 356.2646477203.

Adding to 45218712 its reverse (21781254), we get a palindrome (66999966).

The spelling of 45218712 in words is "forty-five million, two hundred eighteen thousand, seven hundred twelve".