1387436896 has 24 divisors (see below), whose sum is σ = 2736054720. Its totient is φ = 692565888.

The previous prime is 1387436891. The next prime is 1387436909. The reversal of 1387436896 is 6986347831.

It is a happy number.

It is a super-2 number, since 2×1387436896² = 3849962280764229632, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1387436891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16291 + ... + 55138.

It is an arithmetic number, because the mean of its divisors is an integer number (114002280).

Almost surely, 2^1387436896 is an apocalyptic number.

1387436896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1387436896 is a deficient number, since it is larger than the sum of its proper divisors (1348617824).

1387436896 is an equidigital number, since it uses as much as digits as its factorization.

1387436896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72046 (or 72038 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 55.

The square root of 1387436896 is about 37248.3140021129. The cubic root of 1387436896 is about 1115.3326431483.

The spelling of 1387436896 in words is "one billion, three hundred eighty-seven million, four hundred thirty-six thousand, eight hundred ninety-six".