45581580 has 72 divisors (see below), whose sum is σ = 150840144. Its totient is φ = 11049600.

The previous prime is 45581531. The next prime is 45581593. The reversal of 45581580 is 8518554.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9531 + ... + 13490.

It is an arithmetic number, because the mean of its divisors is an integer number (2095002).

Almost surely, 2^45581580 is an apocalyptic number.

It is an amenable number.

45581580 is an abundant number, since it is smaller than the sum of its proper divisors (105258564).

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

45581580 is a wasteful number, since it uses less digits than its factorization.

45581580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23047 (or 23042 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 36.

The square root of 45581580 is about 6751.4131854005. The cubic root of 45581580 is about 357.2150858867.

The spelling of 45581580 in words is "forty-five million, five hundred eighty-one thousand, five hundred eighty".