338428225 has 6 divisors (see below), whose sum is σ = 419651030. Its totient is φ = 270742560.

The previous prime is 338428217. The next prime is 338428229. The reversal of 338428225 is 522824833.

It can be written as a sum of positive squares in 3 ways, for example, as 11505664 + 326922561 = 3392^2 + 18081^2 .

It is not a de Polignac number, because 338428225 - 2³ = 338428217 is a prime.

It is a super-2 number, since 2×338428225² = 229067326953301250, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (338428229) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6768540 + ... + 6768589.

Almost surely, 2^338428225 is an apocalyptic number.

It is an amenable number.

338428225 is a deficient number, since it is larger than the sum of its proper divisors (81222805).

338428225 is a wasteful number, since it uses less digits than its factorization.

338428225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13537139 (or 13537134 counting only the distinct ones).

The product of its digits is 92160, while the sum is 37.

The square root of 338428225 is about 18396.4188091052. The cubic root of 338428225 is about 696.8760280036.

The spelling of 338428225 in words is "three hundred thirty-eight million, four hundred twenty-eight thousand, two hundred twenty-five".