45623490 has 64 divisors (see below), whose sum is σ = 124664832. Its totient is φ = 10577600.

The previous prime is 45623489. The next prime is 45623521. The reversal of 45623490 is 9432654.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4585 + ... + 10595.

It is an arithmetic number, because the mean of its divisors is an integer number (1947888).

Almost surely, 2^45623490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45623490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62332416).

45623490 is an abundant number, since it is smaller than the sum of its proper divisors (79041342).

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

45623490 is a wasteful number, since it uses less digits than its factorization.

45623490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6055.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 45623490 is about 6754.5162669136. The cubic root of 45623490 is about 357.3245328626.

The spelling of 45623490 in words is "forty-five million, six hundred twenty-three thousand, four hundred ninety".