79402238 has 4 divisors (see below), whose sum is σ = 119103360. Its totient is φ = 39701118.

The previous prime is 79402231. The next prime is 79402247. The reversal of 79402238 is 83220497.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 79402198 and 79402207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79402231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19850558 + ... + 19850561.

It is an arithmetic number, because the mean of its divisors is an integer number (29775840).

Almost surely, 2^79402238 is an apocalyptic number.

79402238 is a deficient number, since it is larger than the sum of its proper divisors (39701122).

79402238 is a wasteful number, since it uses less digits than its factorization.

79402238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39701121.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 79402238 is about 8910.7933429072. The cubic root of 79402238 is about 429.8110545398.

The spelling of 79402238 in words is "seventy-nine million, four hundred two thousand, two hundred thirty-eight".