1381373370 has 48 divisors (see below), whose sum is σ = 3867848712. Its totient is φ = 340030080.

The previous prime is 1381373363. The next prime is 1381373387. The reversal of 1381373370 is 733731831.

It can be written as a sum of positive squares in 4 ways, for example, as 1202910489 + 178462881 = 34683^2 + 13359^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 589161 + ... + 591500.

Almost surely, 2^1381373370 is an apocalyptic number.

1381373370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1381373370 is an abundant number, since it is smaller than the sum of its proper divisors (2486475342).

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

1381373370 is a wasteful number, since it uses less digits than its factorization.

1381373370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1180687 (or 1180684 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The square root of 1381373370 is about 37166.8315840885. The cubic root of 1381373370 is about 1113.7054882127.

The spelling of 1381373370 in words is "one billion, three hundred eighty-one million, three hundred seventy-three thousand, three hundred seventy".