76402449 has 6 divisors (see below), whose sum is σ = 110359106. Its totient is φ = 50934960.

The previous prime is 76402441. The next prime is 76402511. The reversal of 76402449 is 94420467.

76402449 is a `hidden beast` number, since 7 + 640 + 2 + 4 + 4 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 48650625 + 27751824 = 6975^2 + 5268^2 .

It is not a de Polignac number, because 76402449 - 2³ = 76402441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76402441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4244572 + ... + 4244589.

Almost surely, 2^76402449 is an apocalyptic number.

It is an amenable number.

76402449 is a deficient number, since it is larger than the sum of its proper divisors (33956657).

76402449 is a wasteful number, since it uses less digits than its factorization.

76402449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8489167 (or 8489164 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 76402449 is about 8740.8494438470. The cubic root of 76402449 is about 424.3287192891.

The spelling of 76402449 in words is "seventy-six million, four hundred two thousand, four hundred forty-nine".