76139394 has 16 divisors (see below), whose sum is σ = 153391968. Its totient is φ = 25194272.

The previous prime is 76139387. The next prime is 76139417. The reversal of 76139394 is 49393167.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 45492 + ... + 47135.

It is an arithmetic number, because the mean of its divisors is an integer number (9586998).

Almost surely, 2^76139394 is an apocalyptic number.

76139394 is an abundant number, since it is smaller than the sum of its proper divisors (77252574).

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

76139394 is a wasteful number, since it uses less digits than its factorization.

76139394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92769.

The product of its digits is 122472, while the sum is 42.

The square root of 76139394 is about 8725.7890187650. The cubic root of 76139394 is about 423.8411688524.

The spelling of 76139394 in words is "seventy-six million, one hundred thirty-nine thousand, three hundred ninety-four".