45531008 has 32 divisors (see below), whose sum is σ = 92259000. Its totient is φ = 22375936.

The previous prime is 45530993. The next prime is 45531019. The reversal of 45531008 is 80013554.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4538 + ... + 10566.

Almost surely, 2^45531008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45531008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46129500).

45531008 is an abundant number, since it is smaller than the sum of its proper divisors (46727992).

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

45531008 is an equidigital number, since it uses as much as digits as its factorization.

45531008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6102 (or 6090 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 45531008 is about 6747.6668560325. Note that the first 3 decimals coincide. The cubic root of 45531008 is about 357.0829289466.

The spelling of 45531008 in words is "forty-five million, five hundred thirty-one thousand, eight".