1387234384 has 20 divisors (see below), whose sum is σ = 2829228640. Its totient is φ = 657110880.

The previous prime is 1387234369. The next prime is 1387234393. The reversal of 1387234384 is 4834327831.

It is a self number, because there is not a number n which added to its sum of digits gives 1387234384.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2281332 + ... + 2281939.

It is an arithmetic number, because the mean of its divisors is an integer number (141461432).

Almost surely, 2^1387234384 is an apocalyptic number.

It is an amenable number.

1387234384 is an abundant number, since it is smaller than the sum of its proper divisors (1441994256).

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

1387234384 is a wasteful number, since it uses less digits than its factorization.

1387234384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4563298 (or 4563292 counting only the distinct ones).

The product of its digits is 387072, while the sum is 43.

The square root of 1387234384 is about 37245.5954979914. The cubic root of 1387234384 is about 1115.2783753986.

The spelling of 1387234384 in words is "one billion, three hundred eighty-seven million, two hundred thirty-four thousand, three hundred eighty-four".