338670731 has 16 divisors (see below), whose sum is σ = 399072960. Its totient is φ = 281335680.

The previous prime is 338670697. The next prime is 338670733. The reversal of 338670731 is 137076833.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 338670731 - 2¹⁰ = 338669707 is a prime.

It is a super-2 number, since 2×338670731² = 229395728072148722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (338670733) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67241 + ... + 72101.

It is an arithmetic number, because the mean of its divisors is an integer number (24942060).

Almost surely, 2^338670731 is an apocalyptic number.

338670731 is a deficient number, since it is larger than the sum of its proper divisors (60402229).

338670731 is a wasteful number, since it uses less digits than its factorization.

338670731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5174.

The product of its (nonzero) digits is 63504, while the sum is 38.

The square root of 338670731 is about 18403.0087485715. The cubic root of 338670731 is about 697.0424407079.

The spelling of 338670731 in words is "three hundred thirty-eight million, six hundred seventy thousand, seven hundred thirty-one".