45643400 has 48 divisors (see below), whose sum is σ = 115773840. Its totient is φ = 16596800.

The previous prime is 45643399. The next prime is 45643421. The reversal of 45643400 is 434654.

It is a self number, because there is not a number n which added to its sum of digits gives 45643400.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8174 + ... + 12573.

It is an arithmetic number, because the mean of its divisors is an integer number (2411955).

Almost surely, 2^45643400 is an apocalyptic number.

45643400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45643400 is an abundant number, since it is smaller than the sum of its proper divisors (70130440).

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

45643400 is a wasteful number, since it uses less digits than its factorization.

45643400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20774 (or 20765 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 45643400 is about 6755.9899348652. The cubic root of 45643400 is about 357.3765038743.

The spelling of 45643400 in words is "forty-five million, six hundred forty-three thousand, four hundred".