77238430 has 8 divisors (see below), whose sum is σ = 139029192. Its totient is φ = 30895368.

The previous prime is 77238419. The next prime is 77238431. The reversal of 77238430 is 3483277.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77238431) 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, 3861912 + ... + 3861931.

It is an arithmetic number, because the mean of its divisors is an integer number (17378649).

Almost surely, 2^77238430 is an apocalyptic number.

77238430 is a deficient number, since it is larger than the sum of its proper divisors (61790762).

77238430 is a wasteful number, since it uses less digits than its factorization.

77238430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7723850.

The product of its (nonzero) digits is 28224, while the sum is 34.

The square root of 77238430 is about 8788.5396966732. The cubic root of 77238430 is about 425.8707499475.

The spelling of 77238430 in words is "seventy-seven million, two hundred thirty-eight thousand, four hundred thirty".