1938690325 has 48 divisors (see below), whose sum is σ = 2837318400. Its totient is φ = 1295481600.

The previous prime is 1938690277. The next prime is 1938690329. The reversal of 1938690325 is 5230968391.

It is a happy number.

It is not a de Polignac number, because 1938690325 - 2⁹ = 1938689813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1938690329) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 853291 + ... + 855559.

It is an arithmetic number, because the mean of its divisors is an integer number (59110800).

Almost surely, 2^1938690325 is an apocalyptic number.

It is an amenable number.

1938690325 is a deficient number, since it is larger than the sum of its proper divisors (898628075).

1938690325 is a wasteful number, since it uses less digits than its factorization.

1938690325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2542 (or 2537 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 46.

The square root of 1938690325 is about 44030.5612614693. The cubic root of 1938690325 is about 1246.9129852143.

The spelling of 1938690325 in words is "one billion, nine hundred thirty-eight million, six hundred ninety thousand, three hundred twenty-five".