1387384572 has 48 divisors (see below), whose sum is σ = 3721116672. Its totient is φ = 394100160.

The previous prime is 1387384567. The next prime is 1387384601. The reversal of 1387384572 is 2754837831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33204 + ... + 62267.

It is an arithmetic number, because the mean of its divisors is an integer number (77523264).

Almost surely, 2^1387384572 is an apocalyptic number.

1387384572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1387384572 is an abundant number, since it is smaller than the sum of its proper divisors (2333732100).

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

1387384572 is a wasteful number, since it uses less digits than its factorization.

1387384572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95658 (or 95656 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 48.

The square root of 1387384572 is about 37247.6116281299. The cubic root of 1387384572 is about 1115.3186222346.

The spelling of 1387384572 in words is "one billion, three hundred eighty-seven million, three hundred eighty-four thousand, five hundred seventy-two".