1383993172 has 6 divisors (see below), whose sum is σ = 2421988058. Its totient is φ = 691996584.

The previous prime is 1383993133. The next prime is 1383993199. The reversal of 1383993172 is 2713993831.

It can be written as a sum of positive squares in only one way, i.e., 1330498576 + 53494596 = 36476^2 + 7314^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172999143 + ... + 172999150.

Almost surely, 2^1383993172 is an apocalyptic number.

It is an amenable number.

1383993172 is a deficient number, since it is larger than the sum of its proper divisors (1037994886).

1383993172 is a wasteful number, since it uses less digits than its factorization.

1383993172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345998297 (or 345998295 counting only the distinct ones).

The product of its digits is 244944, while the sum is 46.

The square root of 1383993172 is about 37202.0587064748. The cubic root of 1383993172 is about 1114.4090984471.

The spelling of 1383993172 in words is "one billion, three hundred eighty-three million, nine hundred ninety-three thousand, one hundred seventy-two".