45159640 has 32 divisors (see below), whose sum is σ = 101962080. Its totient is φ = 18001152.

The previous prime is 45159623. The next prime is 45159677. The reversal of 45159640 is 4695154.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 45159596 and 45159605.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10717 + ... + 14323.

It is an arithmetic number, because the mean of its divisors is an integer number (3186315).

Almost surely, 2^45159640 is an apocalyptic number.

45159640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45159640 is an abundant number, since it is smaller than the sum of its proper divisors (56802440).

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

45159640 is a wasteful number, since it uses less digits than its factorization.

45159640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3931 (or 3927 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 45159640 is about 6720.0922612714. The cubic root of 45159640 is about 356.1094432689.

The spelling of 45159640 in words is "forty-five million, one hundred fifty-nine thousand, six hundred forty".