76386642 has 16 divisors (see below), whose sum is σ = 153499872. Its totient is φ = 25341120.

The previous prime is 76386641. The next prime is 76386647. The reversal of 76386642 is 24668367.

It is a junction number, because it is equal to n+sod(n) for n = 76386594 and 76386603.

It is not an unprimeable number, because it can be changed into a prime (76386641) 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 7 ways as a sum of consecutive naturals, for example, 28903 + ... + 31434.

It is an arithmetic number, because the mean of its divisors is an integer number (9593742).

Almost surely, 2^76386642 is an apocalyptic number.

76386642 is an abundant number, since it is smaller than the sum of its proper divisors (77113230).

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

76386642 is a wasteful number, since it uses less digits than its factorization.

76386642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60553.

The product of its digits is 290304, while the sum is 42.

The square root of 76386642 is about 8739.9451943362. The cubic root of 76386642 is about 424.2994539677.

It can be divided in two parts, 76386 and 642, that added together give a triangular number (77028 = T₃₉₂).

The spelling of 76386642 in words is "seventy-six million, three hundred eighty-six thousand, six hundred forty-two".