45945664 has 28 divisors (see below), whose sum is σ = 91403424. Its totient is φ = 22914944.

The previous prime is 45945661. The next prime is 45945677. The reversal of 45945664 is 46654954.

It is a super-2 number, since 2×45945664² = 4222008080801792, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 45945664.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45945661) 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 3 ways as a sum of consecutive naturals, for example, 36957 + ... + 38179.

It is an arithmetic number, because the mean of its divisors is an integer number (3264408).

Almost surely, 2^45945664 is an apocalyptic number.

It is an amenable number.

45945664 is a deficient number, since it is larger than the sum of its proper divisors (45457760).

45945664 is a wasteful number, since it uses less digits than its factorization.

45945664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1822 (or 1812 counting only the distinct ones).

The product of its digits is 518400, while the sum is 43.

The square root of 45945664 is about 6778.3230964598. The cubic root of 45945664 is about 358.1636529016.

The spelling of 45945664 in words is "forty-five million, nine hundred forty-five thousand, six hundred sixty-four".