1387511372 has 48 divisors (see below), whose sum is σ = 2794811040. Its totient is φ = 597046272.

The previous prime is 1387511371. The next prime is 1387511399. The reversal of 1387511372 is 2731157831.

It is not an unprimeable number, because it can be changed into a prime (1387511371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87254 + ... + 101922.

It is an arithmetic number, because the mean of its divisors is an integer number (58225230).

Almost surely, 2^1387511372 is an apocalyptic number.

It is an amenable number.

1387511372 is an abundant number, since it is smaller than the sum of its proper divisors (1407299668).

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

1387511372 is a wasteful number, since it uses less digits than its factorization.

1387511372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14810 (or 14808 counting only the distinct ones).

The product of its digits is 35280, while the sum is 38.

The square root of 1387511372 is about 37249.3137117988. The cubic root of 1387511372 is about 1115.3525993779.

The spelling of 1387511372 in words is "one billion, three hundred eighty-seven million, five hundred eleven thousand, three hundred seventy-two".