838272506 has 4 divisors (see below), whose sum is σ = 1257408762. Its totient is φ = 419136252.

The previous prime is 838272503. The next prime is 838272541. The reversal of 838272506 is 605272838.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 587335225 + 250937281 = 24235^2 + 15841^2 .

It is not an unprimeable number, because it can be changed into a prime (838272503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 209568125 + ... + 209568128.

Almost surely, 2^838272506 is an apocalyptic number.

838272506 is a deficient number, since it is larger than the sum of its proper divisors (419136256).

838272506 is a wasteful number, since it uses less digits than its factorization.

838272506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419136255.

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 838272506 is about 28952.9360514612. The cubic root of 838272506 is about 942.8915435850.

The spelling of 838272506 in words is "eight hundred thirty-eight million, two hundred seventy-two thousand, five hundred six".