45685844 has 6 divisors (see below), whose sum is σ = 79950234. Its totient is φ = 22842920.

The previous prime is 45685831. The next prime is 45685891. The reversal of 45685844 is 44858654.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 43692100 + 1993744 = 6610^2 + 1412^2 .

It is a junction number, because it is equal to n+sod(n) for n = 45685795 and 45685804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5710727 + ... + 5710734.

It is an arithmetic number, because the mean of its divisors is an integer number (13325039).

Almost surely, 2^45685844 is an apocalyptic number.

It is an amenable number.

45685844 is a deficient number, since it is larger than the sum of its proper divisors (34264390).

45685844 is a wasteful number, since it uses less digits than its factorization.

45685844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11421465 (or 11421463 counting only the distinct ones).

The product of its digits is 614400, while the sum is 44.

The square root of 45685844 is about 6759.1304174428. The cubic root of 45685844 is about 357.4872448870.

The spelling of 45685844 in words is "forty-five million, six hundred eighty-five thousand, eight hundred forty-four".