76157540 has 12 divisors (see below), whose sum is σ = 159930876. Its totient is φ = 30463008.

The previous prime is 76157539. The next prime is 76157551. The reversal of 76157540 is 4575167.

It can be written as a sum of positive squares in 2 ways, for example, as 48553024 + 27604516 = 6968^2 + 5254^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 76157540.

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, 1903919 + ... + 1903958.

It is an arithmetic number, because the mean of its divisors is an integer number (13327573).

Almost surely, 2^76157540 is an apocalyptic number.

It is an amenable number.

76157540 is an abundant number, since it is smaller than the sum of its proper divisors (83773336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

76157540 is a wasteful number, since it uses less digits than its factorization.

76157540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3807886 (or 3807884 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 35.

The square root of 76157540 is about 8726.8287481765. The cubic root of 76157540 is about 423.8748369732.

The spelling of 76157540 in words is "seventy-six million, one hundred fifty-seven thousand, five hundred forty".