45168920 has 32 divisors (see below), whose sum is σ = 103997520. Its totient is φ = 17646720.

The previous prime is 45168919. The next prime is 45168967. The reversal of 45168920 is 2986154.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

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, 11411 + ... + 14850.

Almost surely, 2^45168920 is an apocalyptic number.

45168920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45168920 is an abundant number, since it is smaller than the sum of its proper divisors (58828600).

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

45168920 is a wasteful number, since it uses less digits than its factorization.

45168920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26315 (or 26311 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 45168920 is about 6720.7826925143. The cubic root of 45168920 is about 356.1338342907.

The spelling of 45168920 in words is "forty-five million, one hundred sixty-eight thousand, nine hundred twenty".