40449488 has 20 divisors (see below), whose sum is σ = 78532548. Its totient is φ = 20183040.

The previous prime is 40449421. The next prime is 40449491. The reversal of 40449488 is 88494404.

It can be written as a sum of positive squares in 2 ways, for example, as 29506624 + 10942864 = 5432^2 + 3308^2 .

It is a super-2 number, since 2×40449488² = 3272322158924288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6320 + ... + 10992.

Almost surely, 2^40449488 is an apocalyptic number.

It is an amenable number.

40449488 is a deficient number, since it is larger than the sum of its proper divisors (38083060).

40449488 is a wasteful number, since it uses less digits than its factorization.

40449488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5222 (or 5216 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 41.

The square root of 40449488 is about 6359.9911949625. The cubic root of 40449488 is about 343.2714434793.

The spelling of 40449488 in words is "forty million, four hundred forty-nine thousand, four hundred eighty-eight".