77242374 has 24 divisors (see below), whose sum is σ = 182573352. Its totient is φ = 23406720.

The previous prime is 77242369. The next prime is 77242379. The reversal of 77242374 is 47324277.

It is an interprime number because it is at equal distance from previous prime (77242369) and next prime (77242379).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77242379) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 194859 + ... + 195254.

It is an arithmetic number, because the mean of its divisors is an integer number (7607223).

Almost surely, 2^77242374 is an apocalyptic number.

77242374 is an abundant number, since it is smaller than the sum of its proper divisors (105330978).

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

77242374 is a wasteful number, since it uses less digits than its factorization.

77242374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390132 (or 390129 counting only the distinct ones).

The product of its digits is 65856, while the sum is 36.

The square root of 77242374 is about 8788.7640769337. The cubic root of 77242374 is about 425.8779985225.

The spelling of 77242374 in words is "seventy-seven million, two hundred forty-two thousand, three hundred seventy-four".