238898668738 has 8 divisors (see below), whose sum is σ = 358350630732. Its totient is φ = 119448458496.

The previous prime is 238898668733. The next prime is 238898668747. The reversal of 238898668738 is 837866898832.

It can be written as a sum of positive squares in 2 ways, for example, as 234975776049 + 3922892689 = 484743^2 + 62633^2 .

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

It is not an unprimeable number, because it can be changed into a prime (238898668733) 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, 15495 + ... + 691402.

Almost surely, 2^238898668738 is an apocalyptic number.

238898668738 is a deficient number, since it is larger than the sum of its proper divisors (119451961994).

238898668738 is a wasteful number, since it uses less digits than its factorization.

238898668738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 875876.

The product of its digits is 1337720832, while the sum is 76.

The spelling of 238898668738 in words is "two hundred thirty-eight billion, eight hundred ninety-eight million, six hundred sixty-eight thousand, seven hundred thirty-eight".