838902220 has 24 divisors (see below), whose sum is σ = 1897210224. Its totient is φ = 309748416.

The previous prime is 838902209. The next prime is 838902241. The reversal of 838902220 is 22209838.

It is a happy number.

It is a super-3 number, since 3×838902220³ (a number of 28 digits) contains 333 as substring.

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, 1613014 + ... + 1613533.

It is an arithmetic number, because the mean of its divisors is an integer number (79050426).

Almost surely, 2^838902220 is an apocalyptic number.

It is an amenable number.

838902220 is an abundant number, since it is smaller than the sum of its proper divisors (1058308004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

838902220 is a wasteful number, since it uses less digits than its factorization.

838902220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3226569 (or 3226567 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 838902220 is about 28963.8087964964. The cubic root of 838902220 is about 943.1275859169.

The spelling of 838902220 in words is "eight hundred thirty-eight million, nine hundred two thousand, two hundred twenty".