45212688 has 40 divisors (see below), whose sum is σ = 129778400. Its totient is φ = 15070752.

The previous prime is 45212683. The next prime is 45212689. The reversal of 45212688 is 88621254.

45212688 is a `hidden beast` number, since 452 + 126 + 88 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (45212683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51898 + ... + 52761.

It is an arithmetic number, because the mean of its divisors is an integer number (3244460).

Almost surely, 2^45212688 is an apocalyptic number.

45212688 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

45212688 is an abundant number, since it is smaller than the sum of its proper divisors (84565712).

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

45212688 is a wasteful number, since it uses less digits than its factorization.

45212688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104676 (or 104664 counting only the distinct ones).

The product of its digits is 30720, while the sum is 36.

The square root of 45212688 is about 6724.0380724681. The cubic root of 45212688 is about 356.2488265889.

The spelling of 45212688 in words is "forty-five million, two hundred twelve thousand, six hundred eighty-eight".