1381983048 has 48 divisors (see below), whose sum is σ = 3746496780. Its totient is φ = 460214784.

The previous prime is 1381983017. The next prime is 1381983049. The reversal of 1381983048 is 8403891831.

It can be written as a sum of positive squares in 2 ways, for example, as 1090188324 + 291794724 = 33018^2 + 17082^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1381982994 and 1381983012.

It is not an unprimeable number, because it can be changed into a prime (1381983049) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70236 + ... + 87732.

Almost surely, 2^1381983048 is an apocalyptic number.

1381983048 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1381983048 is an abundant number, since it is smaller than the sum of its proper divisors (2364513732).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1381983048 is a wasteful number, since it uses less digits than its factorization.

1381983048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18606 (or 18599 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The square root of 1381983048 is about 37175.0325890913. The cubic root of 1381983048 is about 1113.8693111346.

It can be divided in two parts, 138198 and 3048, that added together give a triangular number (141246 = T₅₃₁).

The spelling of 1381983048 in words is "one billion, three hundred eighty-one million, nine hundred eighty-three thousand, forty-eight".