338690634 has 16 divisors (see below), whose sum is σ = 677714688. Its totient is φ = 112841312.

The previous prime is 338690633. The next prime is 338690647. The reversal of 338690634 is 436096833.

It is a super-2 number, since 2×338690634² = 229422691118643912, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (338690633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 454 + ... + 26030.

It is an arithmetic number, because the mean of its divisors is an integer number (42357168).

Almost surely, 2^338690634 is an apocalyptic number.

338690634 is an abundant number, since it is smaller than the sum of its proper divisors (339024054).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

338690634 is a wasteful number, since it uses less digits than its factorization.

338690634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27789.

The product of its (nonzero) digits is 279936, while the sum is 42.

The square root of 338690634 is about 18403.5494945948. The cubic root of 338690634 is about 697.0560950361.

The spelling of 338690634 in words is "three hundred thirty-eight million, six hundred ninety thousand, six hundred thirty-four".