45457090 has 32 divisors (see below), whose sum is σ = 96044544. Its totient is φ = 15163200.

The previous prime is 45457079. The next prime is 45457091. The reversal of 45457090 is 9075454.

It is not an unprimeable number, because it can be changed into a prime (45457091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6186 + ... + 11365.

It is an arithmetic number, because the mean of its divisors is an integer number (3001392).

Almost surely, 2^45457090 is an apocalyptic number.

45457090 is an abundant number, since it is smaller than the sum of its proper divisors (50587454).

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

45457090 is a wasteful number, since it uses less digits than its factorization.

45457090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17602.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 45457090 is about 6742.1873305330. The cubic root of 45457090 is about 356.8895870630.

The spelling of 45457090 in words is "forty-five million, four hundred fifty-seven thousand, ninety".