45208840 has 32 divisors (see below), whose sum is σ = 102663000. Its totient is φ = 17915904.

The previous prime is 45208837. The next prime is 45208861. The reversal of 45208840 is 4880254.

It can be written as a sum of positive squares in 4 ways, for example, as 29224836 + 15984004 = 5406^2 + 3998^2 .

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, 825 + ... + 9544.

Almost surely, 2^45208840 is an apocalyptic number.

45208840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45208840 is an abundant number, since it is smaller than the sum of its proper divisors (57454160).

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

45208840 is a wasteful number, since it uses less digits than its factorization.

45208840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10489 (or 10485 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 31.

The square root of 45208840 is about 6723.7519287969. The cubic root of 45208840 is about 356.2387196592.

The spelling of 45208840 in words is "forty-five million, two hundred eight thousand, eight hundred forty".