767320042 has 4 divisors (see below), whose sum is σ = 1150980066. Its totient is φ = 383660020.

The previous prime is 767320039. The next prime is 767320049. The reversal of 767320042 is 240023767.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 240023767 = 5419 ⋅44293.

It can be written as a sum of positive squares in only one way, i.e., 518973961 + 248346081 = 22781^2 + 15759^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 767319986 and 767320013.

It is not an unprimeable number, because it can be changed into a prime (767320049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 191830009 + ... + 191830012.

Almost surely, 2^767320042 is an apocalyptic number.

767320042 is a deficient number, since it is larger than the sum of its proper divisors (383660024).

767320042 is a wasteful number, since it uses less digits than its factorization.

767320042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383660023.

The product of its (nonzero) digits is 14112, while the sum is 31.

The square root of 767320042 is about 27700.5422690604. The cubic root of 767320042 is about 915.5010511852.

The spelling of 767320042 in words is "seven hundred sixty-seven million, three hundred twenty thousand, forty-two".