157718338 has 8 divisors (see below), whose sum is σ = 238874688. Its totient is φ = 78093444.

The previous prime is 157718329. The next prime is 157718339. The reversal of 157718338 is 833817751.

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

It is a junction number, because it is equal to n+sod(n) for n = 157718294 and 157718303.

It is not an unprimeable number, because it can be changed into a prime (157718339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 382606 + ... + 383017.

It is an arithmetic number, because the mean of its divisors is an integer number (29859336).

Almost surely, 2^157718338 is an apocalyptic number.

157718338 is a deficient number, since it is larger than the sum of its proper divisors (81156350).

157718338 is a wasteful number, since it uses less digits than its factorization.

157718338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765728.

The product of its digits is 141120, while the sum is 43.

The square root of 157718338 is about 12558.5961795099. The cubic root of 157718338 is about 540.2905820599.

The spelling of 157718338 in words is "one hundred fifty-seven million, seven hundred eighteen thousand, three hundred thirty-eight".