838623378 has 16 divisors (see below), whose sum is σ = 1750170816. Its totient is φ = 267387120.

The previous prime is 838623323. The next prime is 838623391. The reversal of 838623378 is 873326838.

It is a Curzon number.

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, 3038353 + ... + 3038628.

It is an arithmetic number, because the mean of its divisors is an integer number (109385676).

Almost surely, 2^838623378 is an apocalyptic number.

838623378 is an abundant number, since it is smaller than the sum of its proper divisors (911547438).

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

838623378 is a wasteful number, since it uses less digits than its factorization.

838623378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6077009.

The product of its digits is 1161216, while the sum is 48.

The square root of 838623378 is about 28958.9947684653. The cubic root of 838623378 is about 943.0230792100.

The spelling of 838623378 in words is "eight hundred thirty-eight million, six hundred twenty-three thousand, three hundred seventy-eight".