77031042 has 32 divisors (see below), whose sum is σ = 168471360. Its totient is φ = 23286720.

The previous prime is 77031041. The next prime is 77031067. The reversal of 77031042 is 24013077.

It is not an unprimeable number, because it can be changed into a prime (77031041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32448 + ... + 34740.

It is an arithmetic number, because the mean of its divisors is an integer number (5264730).

Almost surely, 2^77031042 is an apocalyptic number.

77031042 is an abundant number, since it is smaller than the sum of its proper divisors (91440318).

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

77031042 is a wasteful number, since it uses less digits than its factorization.

77031042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2818.

The product of its (nonzero) digits is 1176, while the sum is 24.

The square root of 77031042 is about 8776.7329912673. The cubic root of 77031042 is about 425.4892487996.

The spelling of 77031042 in words is "seventy-seven million, thirty-one thousand, forty-two".