1381793042 has 12 divisors (see below), whose sum is σ = 2411088030. Its totient is φ = 592196976.

The previous prime is 1381793027. The next prime is 1381793087. The reversal of 1381793042 is 2403971831.

It can be written as a sum of positive squares in only one way, i.e., 1298088841 + 83704201 = 36029^2 + 9149^2 .

It is a super-2 number, since 2×1381793042² = 3818704021839227528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1381792987 and 1381793005.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7049867 + ... + 7050062.

Almost surely, 2^1381793042 is an apocalyptic number.

1381793042 is a deficient number, since it is larger than the sum of its proper divisors (1029294988).

1381793042 is a wasteful number, since it uses less digits than its factorization.

1381793042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14099945 (or 14099938 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 1381793042 is about 37172.4769419526. The cubic root of 1381793042 is about 1113.8182609299.

The spelling of 1381793042 in words is "one billion, three hundred eighty-one million, seven hundred ninety-three thousand, forty-two".