838433381 has 4 divisors (see below), whose sum is σ = 848535072. Its totient is φ = 828331692.

The previous prime is 838433363. The next prime is 838433383. The reversal of 838433381 is 183334838.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 838433381 - 2²⁶ = 771324517 is a prime.

It is a super-2 number, since 2×838433381² = 1405941068750182322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (838433383) 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, 5050721 + ... + 5050886.

It is an arithmetic number, because the mean of its divisors is an integer number (212133768).

Almost surely, 2^838433381 is an apocalyptic number.

It is an amenable number.

838433381 is a deficient number, since it is larger than the sum of its proper divisors (10101691).

838433381 is a wasteful number, since it uses less digits than its factorization.

838433381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10101690.

The product of its digits is 165888, while the sum is 41.

The square root of 838433381 is about 28955.7141338286. The cubic root of 838433381 is about 942.9518572950.

The spelling of 838433381 in words is "eight hundred thirty-eight million, four hundred thirty-three thousand, three hundred eighty-one".