838408632 has 16 divisors (see below), whose sum is σ = 2096021640. Its totient is φ = 279469536.

The previous prime is 838408619. The next prime is 838408639. The reversal of 838408632 is 236804838.

It is a super-2 number, since 2×838408632² = 1405858068424222848, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (838408639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17466823 + ... + 17466870.

Almost surely, 2^838408632 is an apocalyptic number.

It is an amenable number.

838408632 is an abundant number, since it is smaller than the sum of its proper divisors (1257613008).

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

838408632 is a wasteful number, since it uses less digits than its factorization.

838408632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34933702 (or 34933698 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 42.

The square root of 838408632 is about 28955.2867711580. The cubic root of 838408632 is about 942.9425791398.

The spelling of 838408632 in words is "eight hundred thirty-eight million, four hundred eight thousand, six hundred thirty-two".