1939873925 has 48 divisors (see below), whose sum is σ = 2728700352. Its totient is φ = 1355558400.

The previous prime is 1939873919. The next prime is 1939873931. The reversal of 1939873925 is 5293789391.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1939873919) and next prime (1939873931).

It is not a de Polignac number, because 1939873925 - 2⁶ = 1939873861 is a prime.

It is a super-2 number, since 2×1939873925² = 7526221689789811250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 843377 + ... + 845673.

It is an arithmetic number, because the mean of its divisors is an integer number (56847924).

Almost surely, 2^1939873925 is an apocalyptic number.

It is an amenable number.

1939873925 is a deficient number, since it is larger than the sum of its proper divisors (788826427).

1939873925 is a wasteful number, since it uses less digits than its factorization.

1939873925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2438 (or 2433 counting only the distinct ones).

The product of its digits is 3674160, while the sum is 56.

The square root of 1939873925 is about 44043.9998751249. Note that the first 3 decimals coincide. The cubic root of 1939873925 is about 1247.1666867209.

The spelling of 1939873925 in words is "one billion, nine hundred thirty-nine million, eight hundred seventy-three thousand, nine hundred twenty-five".