45990906 has 32 divisors (see below), whose sum is σ = 104274240. Its totient is φ = 13405824.

The previous prime is 45990859. The next prime is 45990911. The reversal of 45990906 is 60909954.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14035 + ... + 16998.

It is an arithmetic number, because the mean of its divisors is an integer number (3258570).

Almost surely, 2^45990906 is an apocalyptic number.

45990906 is an abundant number, since it is smaller than the sum of its proper divisors (58283334).

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

45990906 is a wasteful number, since it uses less digits than its factorization.

45990906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31070.

The product of its (nonzero) digits is 87480, while the sum is 42.

The square root of 45990906 is about 6781.6595314126. The cubic root of 45990906 is about 358.2811737793.

The spelling of 45990906 in words is "forty-five million, nine hundred ninety thousand, nine hundred six".