338907390 has 16 divisors (see below), whose sum is σ = 813377808. Its totient is φ = 90375296.

The previous prime is 338907367. The next prime is 338907463. The reversal of 338907390 is 93709833.

It is a happy number.

It is a super-2 number, since 2×338907390² = 229716437993224200, 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 a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5648427 + ... + 5648486.

It is an arithmetic number, because the mean of its divisors is an integer number (50836113).

Almost surely, 2^338907390 is an apocalyptic number.

338907390 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

338907390 is an abundant number, since it is smaller than the sum of its proper divisors (474470418).

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

338907390 is a wasteful number, since it uses less digits than its factorization.

338907390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11296923.

The product of its (nonzero) digits is 122472, while the sum is 42.

The square root of 338907390 is about 18409.4375253564. The cubic root of 338907390 is about 697.2047645055.

The spelling of 338907390 in words is "three hundred thirty-eight million, nine hundred seven thousand, three hundred ninety".