45021498 has 16 divisors (see below), whose sum is σ = 90109920. Its totient is φ = 14996016.

The previous prime is 45021497. The next prime is 45021523. The reversal of 45021498 is 89412054.

It is not an unprimeable number, because it can be changed into a prime (45021497) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11961 + ... + 15267.

It is an arithmetic number, because the mean of its divisors is an integer number (5631870).

Almost surely, 2^45021498 is an apocalyptic number.

45021498 is an abundant number, since it is smaller than the sum of its proper divisors (45088422).

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

45021498 is a wasteful number, since it uses less digits than its factorization.

45021498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5581.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 45021498 is about 6709.8061074818. The cubic root of 45021498 is about 355.7459629814.

The spelling of 45021498 in words is "forty-five million, twenty-one thousand, four hundred ninety-eight".