76640342 has 4 divisors (see below), whose sum is σ = 114960516. Its totient is φ = 38320170.

The previous prime is 76640327. The next prime is 76640353. The reversal of 76640342 is 24304667.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24304667 = 19 ⋅1279193.

It is a zygodrome in base 6.

It is a junction number, because it is equal to n+sod(n) for n = 76640299 and 76640308.

It is a congruent 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 as a sum of consecutive naturals, namely, 19160084 + ... + 19160087.

It is an arithmetic number, because the mean of its divisors is an integer number (28740129).

Almost surely, 2^76640342 is an apocalyptic number.

76640342 is a deficient number, since it is larger than the sum of its proper divisors (38320174).

76640342 is a wasteful number, since it uses less digits than its factorization.

76640342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38320173.

The product of its (nonzero) digits is 24192, while the sum is 32.

The square root of 76640342 is about 8754.4469842475. The cubic root of 76640342 is about 424.7686713419.

The spelling of 76640342 in words is "seventy-six million, six hundred forty thousand, three hundred forty-two".