45979470 has 72 divisors (see below), whose sum is σ = 123459336. Its totient is φ = 11866176.

The previous prime is 45979469. The next prime is 45979481. The reversal of 45979470 is 7497954.

It is a super-2 number, since 2×45979470² = 4228223322961800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 421776 + ... + 421884.

It is an arithmetic number, because the mean of its divisors is an integer number (1714713).

Almost surely, 2^45979470 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45979470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61729668).

45979470 is an abundant number, since it is smaller than the sum of its proper divisors (77479866).

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

45979470 is a wasteful number, since it uses less digits than its factorization.

45979470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274 (or 162 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 45979470 is about 6780.8163225382. The cubic root of 45979470 is about 358.2514748415.

The spelling of 45979470 in words is "forty-five million, nine hundred seventy-nine thousand, four hundred seventy".