45608440 has 32 divisors (see below), whose sum is σ = 105932160. Its totient is φ = 17654400.

The previous prime is 45608413. The next prime is 45608447. The reversal of 45608440 is 4480654.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45608447) 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, 17151 + ... + 19630.

It is an arithmetic number, because the mean of its divisors is an integer number (3310380).

Almost surely, 2^45608440 is an apocalyptic number.

45608440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45608440 is an abundant number, since it is smaller than the sum of its proper divisors (60323720).

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

45608440 is a wasteful number, since it uses less digits than its factorization.

45608440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36823 (or 36819 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 31.

The square root of 45608440 is about 6753.4021056057. The cubic root of 45608440 is about 357.2852378587.

The spelling of 45608440 in words is "forty-five million, six hundred eight thousand, four hundred forty".