76440534 has 32 divisors (see below), whose sum is σ = 170398080. Its totient is φ = 22718592.

The previous prime is 76440509. The next prime is 76440571. The reversal of 76440534 is 43504467.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 76440495 and 76440504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17784 + ... + 21659.

It is an arithmetic number, because the mean of its divisors is an integer number (5324940).

Almost surely, 2^76440534 is an apocalyptic number.

76440534 is an abundant number, since it is smaller than the sum of its proper divisors (93957546).

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

76440534 is a wasteful number, since it uses less digits than its factorization.

76440534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39484.

The product of its (nonzero) digits is 40320, while the sum is 33.

The square root of 76440534 is about 8743.0277364309. The cubic root of 76440534 is about 424.3992138653.

The spelling of 76440534 in words is "seventy-six million, four hundred forty thousand, five hundred thirty-four".