1387511376 has 40 divisors (see below), whose sum is σ = 3585898464. Its totient is φ = 462311040.

The previous prime is 1387511371. The next prime is 1387511399. The reversal of 1387511376 is 6731157831.

1387511376 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154366 + ... + 163106.

Almost surely, 2^1387511376 is an apocalyptic number.

1387511376 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1387511376 is an abundant number, since it is smaller than the sum of its proper divisors (2198387088).

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

1387511376 is a wasteful number, since it uses less digits than its factorization.

1387511376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12059 (or 12053 counting only the distinct ones).

The product of its digits is 105840, while the sum is 42.

The square root of 1387511376 is about 37249.3137654910. The cubic root of 1387511376 is about 1115.3526004497.

The spelling of 1387511376 in words is "one billion, three hundred eighty-seven million, five hundred eleven thousand, three hundred seventy-six".