45897720 has 192 divisors, whose sum is σ = 158004000. Its totient is φ = 10644480.

The previous prime is 45897707. The next prime is 45897743. The reversal of 45897720 is 2779854.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 421026 + ... + 421134.

Almost surely, 2^45897720 is an apocalyptic number.

45897720 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 45897720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79002000).

45897720 is an abundant number, since it is smaller than the sum of its proper divisors (112106280).

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

45897720 is a wasteful number, since it uses less digits than its factorization.

45897720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174 (or 159 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 45897720 is about 6774.7856054638. The cubic root of 45897720 is about 358.0390290668.

The spelling of 45897720 in words is "forty-five million, eight hundred ninety-seven thousand, seven hundred twenty".