838389225 has 24 divisors (see below), whose sum is σ = 1402847712. Its totient is φ = 441750400.

The previous prime is 838389161. The next prime is 838389241. The reversal of 838389225 is 522983838.

It is not a de Polignac number, because 838389225 - 2⁶ = 838389161 is a prime.

It is a super-2 number, since 2×838389225² = 1405792985192201250, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61116 + ... + 73565.

It is an arithmetic number, because the mean of its divisors is an integer number (58451988).

Almost surely, 2^838389225 is an apocalyptic number.

It is an amenable number.

838389225 is a deficient number, since it is larger than the sum of its proper divisors (564458487).

838389225 is a wasteful number, since it uses less digits than its factorization.

838389225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134777 (or 134772 counting only the distinct ones).

The product of its digits is 829440, while the sum is 48.

The square root of 838389225 is about 28954.9516490703. The cubic root of 838389225 is about 942.9353035198.

The spelling of 838389225 in words is "eight hundred thirty-eight million, three hundred eighty-nine thousand, two hundred twenty-five".