338191442 has 8 divisors (see below), whose sum is σ = 515603532. Its totient is φ = 166323600.

The previous prime is 338191439. The next prime is 338191457. The reversal of 338191442 is 244191833.

It can be written as a sum of positive squares in 2 ways, for example, as 259886641 + 78304801 = 16121^2 + 8849^2 .

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

It is a super-2 number, since 2×338191442² = 228746902884078728, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1385909 + ... + 1386152.

Almost surely, 2^338191442 is an apocalyptic number.

338191442 is a deficient number, since it is larger than the sum of its proper divisors (177412090).

338191442 is a wasteful number, since it uses less digits than its factorization.

338191442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2772124.

The product of its digits is 20736, while the sum is 35.

The square root of 338191442 is about 18389.9821098336. The cubic root of 338191442 is about 696.7134658193.

The spelling of 338191442 in words is "three hundred thirty-eight million, one hundred ninety-one thousand, four hundred forty-two".