45989409 has 16 divisors (see below), whose sum is σ = 63223488. Its totient is φ = 29714112.

The previous prime is 45989381. The next prime is 45989459. The reversal of 45989409 is 90498954.

It is a de Polignac number, because none of the positive numbers 2^k-45989409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45989459) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34534 + ... + 35840.

It is an arithmetic number, because the mean of its divisors is an integer number (3951468).

Almost surely, 2^45989409 is an apocalyptic number.

It is an amenable number.

45989409 is a deficient number, since it is larger than the sum of its proper divisors (17234079).

45989409 is a wasteful number, since it uses less digits than its factorization.

45989409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1664.

The product of its (nonzero) digits is 466560, while the sum is 48.

The square root of 45989409 is about 6781.5491592998. The cubic root of 45989409 is about 358.2772863967.

The spelling of 45989409 in words is "forty-five million, nine hundred eighty-nine thousand, four hundred nine".