45129490 has 48 divisors (see below), whose sum is σ = 97576704. Its totient is φ = 14968800.

The previous prime is 45129463. The next prime is 45129523. The reversal of 45129490 is 9492154.

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, 13705 + ... + 16675.

It is an arithmetic number, because the mean of its divisors is an integer number (2032848).

Almost surely, 2^45129490 is an apocalyptic number.

45129490 is an abundant number, since it is smaller than the sum of its proper divisors (52447214).

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

45129490 is a wasteful number, since it uses less digits than its factorization.

45129490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3023 (or 3016 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 45129490 is about 6717.8486139537. The cubic root of 45129490 is about 356.0301756604.

The spelling of 45129490 in words is "forty-five million, one hundred twenty-nine thousand, four hundred ninety".