838820492 has 24 divisors (see below), whose sum is σ = 1481276160. Its totient is φ = 415615760.

The previous prime is 838820473. The next prime is 838820513. The reversal of 838820492 is 294028838.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220793 + ... + 224559.

It is an arithmetic number, because the mean of its divisors is an integer number (61719840).

Almost surely, 2^838820492 is an apocalyptic number.

It is an amenable number.

838820492 is a deficient number, since it is larger than the sum of its proper divisors (642455668).

838820492 is a wasteful number, since it uses less digits than its factorization.

838820492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4261 (or 4259 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 44.

The square root of 838820492 is about 28962.3978979642. The cubic root of 838820492 is about 943.0969576216.

The spelling of 838820492 in words is "eight hundred thirty-eight million, eight hundred twenty thousand, four hundred ninety-two".