77042 has 8 divisors (see below), whose sum is σ = 132096. Its totient is φ = 33012.

The previous prime is 77041. The next prime is 77047. The reversal of 77042 is 24077.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 77042.

It is not an unprimeable number, because it can be changed into a prime (77041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2738 + ... + 2765.

It is an arithmetic number, because the mean of its divisors is an integer number (16512).

2⁷⁷⁰⁴² is an apocalyptic number.

77042 is a deficient number, since it is larger than the sum of its proper divisors (55054).

77042 is a wasteful number, since it uses less digits than its factorization.

77042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5512.

The product of its (nonzero) digits is 392, while the sum is 20.

The square root of 77042 is about 277.5644069401. The cubic root of 77042 is about 42.5509423740.

It can be divided in two parts, 7 and 7042, that multiplied together give a palindrome (49294).

The spelling of 77042 in words is "seventy-seven thousand, forty-two", and thus it is an iban number.