45293290 has 16 divisors (see below), whose sum is σ = 93174912. Its totient is φ = 15529104.

The previous prime is 45293267. The next prime is 45293309. The reversal of 45293290 is 9239254.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 323454 + ... + 323593.

It is an arithmetic number, because the mean of its divisors is an integer number (5823432).

Almost surely, 2^45293290 is an apocalyptic number.

45293290 is an abundant number, since it is smaller than the sum of its proper divisors (47881622).

45293290 is a wasteful number, since it uses less digits than its factorization.

45293290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647061.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 45293290 is about 6730.0289746776. The cubic root of 45293290 is about 356.4603993631.

The spelling of 45293290 in words is "forty-five million, two hundred ninety-three thousand, two hundred ninety".