45406668 has 12 divisors (see below), whose sum is σ = 105948920. Its totient is φ = 15135552.

The previous prime is 45406651. The next prime is 45406681. The reversal of 45406668 is 86660454.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1891933 + ... + 1891956.

Almost surely, 2^45406668 is an apocalyptic number.

It is an amenable number.

45406668 is an abundant number, since it is smaller than the sum of its proper divisors (60542252).

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

45406668 is a wasteful number, since it uses less digits than its factorization.

45406668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3783896 (or 3783894 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 39.

The square root of 45406668 is about 6738.4470020918. The cubic root of 45406668 is about 356.7575816605.

The spelling of 45406668 in words is "forty-five million, four hundred six thousand, six hundred sixty-eight".