1938430252 has 12 divisors (see below), whose sum is σ = 3700639656. Its totient is φ = 881104640.

The previous prime is 1938430237. The next prime is 1938430261. The reversal of 1938430252 is 2520348391.

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, 22027573 + ... + 22027660.

It is an arithmetic number, because the mean of its divisors is an integer number (308386638).

Almost surely, 2^1938430252 is an apocalyptic number.

It is an amenable number.

1938430252 is a deficient number, since it is larger than the sum of its proper divisors (1762209404).

1938430252 is a wasteful number, since it uses less digits than its factorization.

1938430252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44055248 (or 44055246 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 1938430252 is about 44027.6078387187. The cubic root of 1938430252 is about 1246.8572254232.

The spelling of 1938430252 in words is "one billion, nine hundred thirty-eight million, four hundred thirty thousand, two hundred fifty-two".