338297691 has 4 divisors (see below), whose sum is σ = 451063592. Its totient is φ = 225531792.

The previous prime is 338297677. The next prime is 338297719. The reversal of 338297691 is 196792833.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 338297691 - 2⁶ = 338297627 is a prime.

It is a super-2 number, since 2×338297691² = 228890655471862962, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 338297691.

It is not an unprimeable number, because it can be changed into a prime (338297611) 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, 56382946 + ... + 56382951.

It is an arithmetic number, because the mean of its divisors is an integer number (112765898).

Almost surely, 2^338297691 is an apocalyptic number.

338297691 is a deficient number, since it is larger than the sum of its proper divisors (112765901).

338297691 is a wasteful number, since it uses less digits than its factorization.

338297691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112765900.

The product of its digits is 489888, while the sum is 48.

The square root of 338297691 is about 18392.8706568605. The cubic root of 338297691 is about 696.7864199207.

The spelling of 338297691 in words is "three hundred thirty-eight million, two hundred ninety-seven thousand, six hundred ninety-one".