45388040 has 32 divisors (see below), whose sum is σ = 102375360. Its totient is φ = 18110400.

The previous prime is 45388037. The next prime is 45388067. The reversal of 45388040 is 4088354.

It is a Smith number, since the sum of its digits (32) 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 = 45387988 and 45388006.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18485 + ... + 20795.

It is an arithmetic number, because the mean of its divisors is an integer number (3199230).

Almost surely, 2^45388040 is an apocalyptic number.

45388040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45388040 is an abundant number, since it is smaller than the sum of its proper divisors (56987320).

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

45388040 is a wasteful number, since it uses less digits than its factorization.

45388040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2813 (or 2809 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 45388040 is about 6737.0646427061. The cubic root of 45388040 is about 356.7087886123.

The spelling of 45388040 in words is "forty-five million, three hundred eighty-eight thousand, forty".