45488090 has 32 divisors (see below), whose sum is σ = 91264320. Its totient is φ = 16222464.

The previous prime is 45488087. The next prime is 45488099. The reversal of 45488090 is 9088454.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (45488099) 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, 3812 + ... + 10271.

It is an arithmetic number, because the mean of its divisors is an integer number (2852010).

Almost surely, 2^45488090 is an apocalyptic number.

45488090 is an abundant number, since it is smaller than the sum of its proper divisors (45776230).

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

45488090 is a wasteful number, since it uses less digits than its factorization.

45488090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14126.

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 45488090 is about 6744.4858959004. The cubic root of 45488090 is about 356.9706969857.

The spelling of 45488090 in words is "forty-five million, four hundred eighty-eight thousand, ninety".