45891688 has 48 divisors (see below), whose sum is σ = 94068000. Its totient is φ = 20930112.

The previous prime is 45891683. The next prime is 45891691. The reversal of 45891688 is 88619854.

It is not an unprimeable number, because it can be changed into a prime (45891683) 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, 127653 + ... + 128011.

It is an arithmetic number, because the mean of its divisors is an integer number (1959750).

Almost surely, 2^45891688 is an apocalyptic number.

It is an amenable number.

45891688 is an abundant number, since it is smaller than the sum of its proper divisors (48176312).

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

45891688 is a wasteful number, since it uses less digits than its factorization.

45891688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442 (or 409 counting only the distinct ones).

The product of its digits is 552960, while the sum is 49.

The square root of 45891688 is about 6774.3404106968. The cubic root of 45891688 is about 358.0233435669.

The spelling of 45891688 in words is "forty-five million, eight hundred ninety-one thousand, six hundred eighty-eight".