45487444 has 54 divisors (see below), whose sum is σ = 90064590. Its totient is φ = 20093184.

The previous prime is 45487433. The next prime is 45487451. The reversal of 45487444 is 44478454.

It can be written as a sum of positive squares in 3 ways, for example, as 22924944 + 22562500 = 4788^2 + 4750^2 .

It is a junction number, because it is equal to n+sod(n) for n = 45487397 and 45487406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 417262 + ... + 417370.

Almost surely, 2^45487444 is an apocalyptic number.

It is an amenable number.

45487444 is a deficient number, since it is larger than the sum of its proper divisors (44577146).

45487444 is a wasteful number, since it uses less digits than its factorization.

45487444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185 (or 147 counting only the distinct ones).

The product of its digits is 286720, while the sum is 40.

The square root of 45487444 is about 6744.4380047562. The cubic root of 45487444 is about 356.9690071356.

The spelling of 45487444 in words is "forty-five million, four hundred eighty-seven thousand, four hundred forty-four".