45159940 has 24 divisors (see below), whose sum is σ = 108384192. Its totient is φ = 15483360.

The previous prime is 45159937. The next prime is 45159949. The reversal of 45159940 is 4995154.

It is a self number, because there is not a number n which added to its sum of digits gives 45159940.

It is not an unprimeable number, because it can be changed into a prime (45159949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161146 + ... + 161425.

It is an arithmetic number, because the mean of its divisors is an integer number (4516008).

Almost surely, 2^45159940 is an apocalyptic number.

It is an amenable number.

45159940 is an abundant number, since it is smaller than the sum of its proper divisors (63224252).

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

45159940 is a wasteful number, since it uses less digits than its factorization.

45159940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322587 (or 322585 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 45159940 is about 6720.1145823565. The cubic root of 45159940 is about 356.1102318240.

The spelling of 45159940 in words is "forty-five million, one hundred fifty-nine thousand, nine hundred forty".