45727938 has 12 divisors (see below), whose sum is σ = 99077238. Its totient is φ = 15242640.

The previous prime is 45727931. The next prime is 45727949. The reversal of 45727938 is 83972754.

45727938 is a `hidden beast` number, since 4 + 572 + 79 + 3 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 38900169 + 6827769 = 6237^2 + 2613^2 .

It is a junction number, because it is equal to n+sod(n) for n = 45727893 and 45727902.

It is not an unprimeable number, because it can be changed into a prime (45727931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1270203 + ... + 1270238.

Almost surely, 2^45727938 is an apocalyptic number.

45727938 is an abundant number, since it is smaller than the sum of its proper divisors (53349300).

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

45727938 is a wasteful number, since it uses less digits than its factorization.

45727938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2540449 (or 2540446 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The square root of 45727938 is about 6762.2435626055. The cubic root of 45727938 is about 357.5970049897.

It can be divided in two parts, 45727 and 938, that added together give a triangular number (46665 = T₃₀₅).

The spelling of 45727938 in words is "forty-five million, seven hundred twenty-seven thousand, nine hundred thirty-eight".