1387314180 has 144 divisors (see below), whose sum is σ = 4975326720. Its totient is φ = 306157824.

The previous prime is 1387314169. The next prime is 1387314251. The reversal of 1387314180 is 814137831.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17557 + ... + 55523.

It is an arithmetic number, because the mean of its divisors is an integer number (34550880).

Almost surely, 2^1387314180 is an apocalyptic number.

1387314180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1387314180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2487663360).

1387314180 is an abundant number, since it is smaller than the sum of its proper divisors (3588012540).

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

1387314180 is a wasteful number, since it uses less digits than its factorization.

1387314180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38018 (or 38013 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 1387314180 is about 37246.6666964978. Note that the first 4 decimals coincide. The cubic root of 1387314180 is about 1115.2997592032.

The spelling of 1387314180 in words is "one billion, three hundred eighty-seven million, three hundred fourteen thousand, one hundred eighty".