45715720 has 128 divisors (see below), whose sum is σ = 118195200. Its totient is φ = 15814656.

The previous prime is 45715711. The next prime is 45715727. The reversal of 45715720 is 2751754.

It is not an unprimeable number, because it can be changed into a prime (45715727) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 578641 + ... + 578719.

It is an arithmetic number, because the mean of its divisors is an integer number (923400).

Almost surely, 2^45715720 is an apocalyptic number.

45715720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45715720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59097600).

45715720 is an abundant number, since it is smaller than the sum of its proper divisors (72479480).

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

45715720 is a wasteful number, since it uses less digits than its factorization.

45715720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167 (or 163 counting only the distinct ones).

The product of its (nonzero) digits is 9800, while the sum is 31.

The square root of 45715720 is about 6761.3401038552. The cubic root of 45715720 is about 357.5651534960.

The spelling of 45715720 in words is "forty-five million, seven hundred fifteen thousand, seven hundred twenty".