1939413388 has 12 divisors (see below), whose sum is σ = 3702516552. Its totient is φ = 881551520.

The previous prime is 1939413373. The next prime is 1939413403. The reversal of 1939413388 is 8833149391.

It is an interprime number because it is at equal distance from previous prime (1939413373) and next prime (1939413403).

It is a super-2 number, since 2×1939413388² = 7522648579107277088, which contains 22 as substring.

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, 22038745 + ... + 22038832.

It is an arithmetic number, because the mean of its divisors is an integer number (308543046).

Almost surely, 2^1939413388 is an apocalyptic number.

It is an amenable number.

1939413388 is a deficient number, since it is larger than the sum of its proper divisors (1763103164).

1939413388 is a wasteful number, since it uses less digits than its factorization.

1939413388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44077592 (or 44077590 counting only the distinct ones).

The product of its digits is 559872, while the sum is 49.

The square root of 1939413388 is about 44038.7714179222. The cubic root of 1939413388 is about 1247.0679841101.

The spelling of 1939413388 in words is "one billion, nine hundred thirty-nine million, four hundred thirteen thousand, three hundred eighty-eight".