1387330524 has 96 divisors (see below), whose sum is σ = 3801056000. Its totient is φ = 436373568.

The previous prime is 1387330519. The next prime is 1387330531. The reversal of 1387330524 is 4250337831.

1387330524 is a `hidden beast` number, since 1 + 38 + 73 + 30 + 524 = 666.

It is a super-2 number, since 2×1387330524² = 3849371965644229152, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 579522 + ... + 581910.

Almost surely, 2^1387330524 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1387330524, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1900528000).

1387330524 is an abundant number, since it is smaller than the sum of its proper divisors (2413725476).

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

1387330524 is a wasteful number, since it uses less digits than its factorization.

1387330524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2704 (or 2696 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 1387330524 is about 37246.8860980351. The cubic root of 1387330524 is about 1115.3041389820.

The spelling of 1387330524 in words is "one billion, three hundred eighty-seven million, three hundred thirty thousand, five hundred twenty-four".