45978375 has 16 divisors (see below), whose sum is σ = 76508640. Its totient is φ = 24521600.

The previous prime is 45978371. The next prime is 45978389. The reversal of 45978375 is 57387954.

It is not a de Polignac number, because 45978375 - 2² = 45978371 is a prime.

It is a super-2 number, since 2×45978375² = 4228021935281250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45978371) 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, 60930 + ... + 61679.

It is an arithmetic number, because the mean of its divisors is an integer number (4781790).

Almost surely, 2^45978375 is an apocalyptic number.

45978375 is a deficient number, since it is larger than the sum of its proper divisors (30530265).

45978375 is a wasteful number, since it uses less digits than its factorization.

45978375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122627 (or 122617 counting only the distinct ones).

The product of its digits is 1058400, while the sum is 48.

The square root of 45978375 is about 6780.7355795666. The cubic root of 45978375 is about 358.2486309021.

The spelling of 45978375 in words is "forty-five million, nine hundred seventy-eight thousand, three hundred seventy-five".