338420025 has 84 divisors (see below), whose sum is σ = 650553600. Its totient is φ = 174376800.

The previous prime is 338420021. The next prime is 338420051. The reversal of 338420025 is 520024833.

It is not a de Polignac number, because 338420025 - 2² = 338420021 is a prime.

It is a super-2 number, since 2×338420025² = 229056226642001250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (338420021) by changing a digit.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 564676 + ... + 565274.

Almost surely, 2^338420025 is an apocalyptic number.

It is an amenable number.

338420025 is a deficient number, since it is larger than the sum of its proper divisors (312133575).

338420025 is an equidigital number, since it uses as much as digits as its factorization.

338420025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658 (or 638 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 338420025 is about 18396.1959382912. The cubic root of 338420025 is about 696.8703996023.

Adding to 338420025 its reverse (520024833), we get a palindrome (858444858).

It can be divided in two parts, 3384 and 20025, that added together give a square (23409 = 153²).

The spelling of 338420025 in words is "three hundred thirty-eight million, four hundred twenty thousand, twenty-five".