338977838 has 4 divisors (see below), whose sum is σ = 508466760. Its totient is φ = 169488918.

The previous prime is 338977799. The next prime is 338977843. The reversal of 338977838 is 838779833.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 838779833 = 19 ⋅44146307.

It is a super-2 number, since 2×338977838² = 229811949310308488, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84744458 + ... + 84744461.

It is an arithmetic number, because the mean of its divisors is an integer number (127116690).

Almost surely, 2^338977838 is an apocalyptic number.

338977838 is a deficient number, since it is larger than the sum of its proper divisors (169488922).

338977838 is a wasteful number, since it uses less digits than its factorization.

338977838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169488921.

The product of its digits is 6096384, while the sum is 56.

The square root of 338977838 is about 18411.3507923781. The cubic root of 338977838 is about 697.2530700110.

The spelling of 338977838 in words is "three hundred thirty-eight million, nine hundred seventy-seven thousand, eight hundred thirty-eight".