45417720 has 64 divisors (see below), whose sum is σ = 136715040. Its totient is φ = 12070400.

The previous prime is 45417719. The next prime is 45417721. The reversal of 45417720 is 2771454.

It is an interprime number because it is at equal distance from previous prime (45417719) and next prime (45417721).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45417721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54910 + ... + 55730.

Almost surely, 2^45417720 is an apocalyptic number.

45417720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45417720 is an abundant number, since it is smaller than the sum of its proper divisors (91297320).

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

45417720 is a wasteful number, since it uses less digits than its factorization.

45417720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1296 (or 1292 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 30.

The square root of 45417720 is about 6739.2670224587. The cubic root of 45417720 is about 356.7865242888.

The spelling of 45417720 in words is "forty-five million, four hundred seventeen thousand, seven hundred twenty".