1381162896 has 135 divisors (see below), whose sum is σ = 4104665019. Its totient is φ = 433480896.

The previous prime is 1381162879. The next prime is 1381162901. The reversal of 1381162896 is 6982611831.

The square root of 1381162896 is 37164.

It is a perfect power (a square), and thus also a powerful number.

1381162896 is a `hidden beast` number, since 1 + 3 + 8 + 11 + 628 + 9 + 6 = 666.

It is a super-2 number, since 2×1381162896² = 3815221890574213632, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 8473311 + ... + 8473473.

Almost surely, 2^1381162896 is an apocalyptic number.

1381162896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1381162896 is the 37164-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1381162896

1381162896 is an abundant number, since it is smaller than the sum of its proper divisors (2723502123).

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

1381162896 is a wasteful number, since it uses less digits than its factorization.

1381162896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378 (or 187 counting only the distinct ones).

The product of its digits is 124416, while the sum is 45.

The cubic root of 1381162896 is about 1113.6489218128.

The spelling of 1381162896 in words is "one billion, three hundred eighty-one million, one hundred sixty-two thousand, eight hundred ninety-six".