838287884 has 96 divisors (see below), whose sum is σ = 1832140800. Its totient is φ = 334285056.

The previous prime is 838287869. The next prime is 838287887. The reversal of 838287884 is 488782838.

It is a super-2 number, since 2×838287884² = 1405453152922394912, which contains 22 as substring.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (838287887) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2962007 + ... + 2962289.

It is an arithmetic number, because the mean of its divisors is an integer number (19084800).

Almost surely, 2^838287884 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 838287884, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (916070400).

838287884 is an abundant number, since it is smaller than the sum of its proper divisors (993852916).

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

838287884 is a wasteful number, since it uses less digits than its factorization.

838287884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452 (or 436 counting only the distinct ones).

The product of its digits is 5505024, while the sum is 56.

The square root of 838287884 is about 28953.2016191647. The cubic root of 838287884 is about 942.8973092906.

The spelling of 838287884 in words is "eight hundred thirty-eight million, two hundred eighty-seven thousand, eight hundred eighty-four".