238409426 has 16 divisors (see below), whose sum is σ = 369204504. Its totient is φ = 115375104.

The previous prime is 238409419. The next prime is 238409441. The reversal of 238409426 is 624904832.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 172003225 + 66406201 = 13115^2 + 8149^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 238409426.

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, 5936 + ... + 22628.

Almost surely, 2^238409426 is an apocalyptic number.

238409426 is a deficient number, since it is larger than the sum of its proper divisors (130795078).

238409426 is a wasteful number, since it uses less digits than its factorization.

238409426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16925.

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 238409426 is about 15440.5124914946. The cubic root of 238409426 is about 620.0706007011.

The spelling of 238409426 in words is "two hundred thirty-eight million, four hundred nine thousand, four hundred twenty-six".