45972198 has 28 divisors (see below), whose sum is σ = 103393428. Its totient is φ = 15323580.

The previous prime is 45972197. The next prime is 45972211. The reversal of 45972198 is 89127954.

45972198 is a `hidden beast` number, since 459 + 7 + 2 + 198 = 666.

It is a super-2 number, since 2×45972198² = 4226885977902408, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45972197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 14308 + ... + 17223.

Almost surely, 2^45972198 is an apocalyptic number.

45972198 is an abundant number, since it is smaller than the sum of its proper divisors (57421230).

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

45972198 is an equidigital number, since it uses as much as digits as its factorization.

45972198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31551 (or 31536 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The square root of 45972198 is about 6780.2800827104. The cubic root of 45972198 is about 358.2325871214.

The spelling of 45972198 in words is "forty-five million, nine hundred seventy-two thousand, one hundred ninety-eight".