838742372 has 12 divisors (see below), whose sum is σ = 1580706876. Its totient is φ = 387111840.

The previous prime is 838742363. The next prime is 838742389. The reversal of 838742372 is 273247838.

It can be written as a sum of positive squares in 2 ways, for example, as 37625956 + 801116416 = 6134^2 + 28304^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8064779 + ... + 8064882.

It is an arithmetic number, because the mean of its divisors is an integer number (131725573).

Almost surely, 2^838742372 is an apocalyptic number.

It is an amenable number.

838742372 is a deficient number, since it is larger than the sum of its proper divisors (741964504).

838742372 is a wasteful number, since it uses less digits than its factorization.

838742372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16129678 (or 16129676 counting only the distinct ones).

The product of its digits is 451584, while the sum is 44.

The square root of 838742372 is about 28961.0492213248. The cubic root of 838742372 is about 943.0676795968.

The spelling of 838742372 in words is "eight hundred thirty-eight million, seven hundred forty-two thousand, three hundred seventy-two".