45454590 has 24 divisors (see below), whose sum is σ = 118182168. Its totient is φ = 12121200.

The previous prime is 45454573. The next prime is 45454597. The reversal of 45454590 is 9545454.

It is a super-2 number, since 2×45454590² = 4132239504136200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45454597) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 252436 + ... + 252615.

It is an arithmetic number, because the mean of its divisors is an integer number (4924257).

Almost surely, 2^45454590 is an apocalyptic number.

45454590 is an abundant number, since it is smaller than the sum of its proper divisors (72727578).

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

45454590 is a wasteful number, since it uses less digits than its factorization.

45454590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505064 (or 505061 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The square root of 45454590 is about 6742.0019282109. The cubic root of 45454590 is about 356.8830443335.

The spelling of 45454590 in words is "forty-five million, four hundred fifty-four thousand, five hundred ninety".