77344242 has 8 divisors (see below), whose sum is σ = 154688496. Its totient is φ = 25781412.

The previous prime is 77344219. The next prime is 77344249. The reversal of 77344242 is 24244377.

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

77344242 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (77344249) 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, 6445348 + ... + 6445359.

It is an arithmetic number, because the mean of its divisors is an integer number (19336062).

Almost surely, 2^77344242 is an apocalyptic number.

77344242 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

77344242 is a wasteful number, since it uses less digits than its factorization.

77344242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12890712.

The product of its digits is 37632, while the sum is 33.

The square root of 77344242 is about 8794.5575215584. The cubic root of 77344242 is about 426.0651336411.

The spelling of 77344242 in words is "seventy-seven million, three hundred forty-four thousand, two hundred forty-two".