45717880 has 48 divisors (see below), whose sum is σ = 111403080. Its totient is φ = 16877952.

The previous prime is 45717869. The next prime is 45717883. The reversal of 45717880 is 8871754.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45717883) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3379 + ... + 10141.

Almost surely, 2^45717880 is an apocalyptic number.

45717880 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 45717880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55701540).

45717880 is an abundant number, since it is smaller than the sum of its proper divisors (65685200).

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

45717880 is a wasteful number, since it uses less digits than its factorization.

45717880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6800 (or 6783 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 40.

The square root of 45717880 is about 6761.4998336168. The cubic root of 45717880 is about 357.5707848818.

The spelling of 45717880 in words is "forty-five million, seven hundred seventeen thousand, eight hundred eighty".