76673440 has 24 divisors (see below), whose sum is σ = 181141380. Its totient is φ = 30669312.

The previous prime is 76673437. The next prime is 76673449. The reversal of 76673440 is 4437667.

It can be written as a sum of positive squares in 2 ways, for example, as 73891216 + 2782224 = 8596^2 + 1668^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 76673440.

It is not an unprimeable number, because it can be changed into a prime (76673449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 239445 + ... + 239764.

Almost surely, 2^76673440 is an apocalyptic number.

It is an amenable number.

76673440 is an abundant number, since it is smaller than the sum of its proper divisors (104467940).

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

76673440 is a wasteful number, since it uses less digits than its factorization.

76673440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479224 (or 479216 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 37.

The square root of 76673440 is about 8756.3371337563. The cubic root of 76673440 is about 424.8298095960.

The spelling of 76673440 in words is "seventy-six million, six hundred seventy-three thousand, four hundred forty".