1387924344 has 48 divisors (see below), whose sum is σ = 3767727600. Its totient is φ = 461562624.

The previous prime is 1387924339. The next prime is 1387924357. The reversal of 1387924344 is 4434297831.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1387924344.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8917 + ... + 53435.

It is an arithmetic number, because the mean of its divisors is an integer number (78494325).

Almost surely, 2^1387924344 is an apocalyptic number.

It is an amenable number.

1387924344 is an abundant number, since it is smaller than the sum of its proper divisors (2379803256).

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

1387924344 is a wasteful number, since it uses less digits than its factorization.

1387924344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44964 (or 44957 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 1387924344 is about 37254.8566498383. The cubic root of 1387924344 is about 1115.4632444058.

The spelling of 1387924344 in words is "one billion, three hundred eighty-seven million, nine hundred twenty-four thousand, three hundred forty-four".