45697290 has 32 divisors (see below), whose sum is σ = 109852416. Its totient is φ = 12166080.

The previous prime is 45697279. The next prime is 45697291. The reversal of 45697290 is 9279654.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45697291) 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 15 ways as a sum of consecutive naturals, for example, 32400 + ... + 33780.

It is an arithmetic number, because the mean of its divisors is an integer number (3432888).

Almost surely, 2^45697290 is an apocalyptic number.

45697290 is an abundant number, since it is smaller than the sum of its proper divisors (64155126).

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

45697290 is a wasteful number, since it uses less digits than its factorization.

45697290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2494.

The product of its (nonzero) digits is 136080, while the sum is 42.

The square root of 45697290 is about 6759.9770709670. The cubic root of 45697290 is about 357.5170970029.

The spelling of 45697290 in words is "forty-five million, six hundred ninety-seven thousand, two hundred ninety".