45637748 has 24 divisors (see below), whose sum is σ = 86194920. Its totient is φ = 21018240.

The previous prime is 45637729. The next prime is 45637751. The reversal of 45637748 is 84773654.

It can be written as a sum of positive squares in 4 ways, for example, as 183184 + 45454564 = 428^2 + 6742^2 .

It is a junction number, because it is equal to n+sod(n) for n = 45637699 and 45637708.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 42158 + ... + 43226.

It is an arithmetic number, because the mean of its divisors is an integer number (3591455).

Almost surely, 2^45637748 is an apocalyptic number.

It is an amenable number.

45637748 is a deficient number, since it is larger than the sum of its proper divisors (40557172).

45637748 is a wasteful number, since it uses less digits than its factorization.

45637748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1907 (or 1905 counting only the distinct ones).

The product of its digits is 564480, while the sum is 44.

The square root of 45637748 is about 6755.5716264429. The cubic root of 45637748 is about 357.3617520126.

The spelling of 45637748 in words is "forty-five million, six hundred thirty-seven thousand, seven hundred forty-eight".