938909492 has 6 divisors (see below), whose sum is σ = 1643091618. Its totient is φ = 469454744.

The previous prime is 938909479. The next prime is 938909497. The reversal of 938909492 is 294909839.

It can be written as a sum of positive squares in only one way, i.e., 867066916 + 71842576 = 29446^2 + 8476^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (938909497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117363683 + ... + 117363690.

It is an arithmetic number, because the mean of its divisors is an integer number (273848603).

Almost surely, 2^938909492 is an apocalyptic number.

It is an amenable number.

938909492 is a deficient number, since it is larger than the sum of its proper divisors (704182126).

938909492 is a wasteful number, since it uses less digits than its factorization.

938909492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234727377 (or 234727375 counting only the distinct ones).

The product of its (nonzero) digits is 1259712, while the sum is 53.

The square root of 938909492 is about 30641.6300480245. The cubic root of 938909492 is about 979.2071513216.

The spelling of 938909492 in words is "nine hundred thirty-eight million, nine hundred nine thousand, four hundred ninety-two".