1384491904 has 32 divisors (see below), whose sum is σ = 2769220440. Its totient is φ = 689472000.

The previous prime is 1384491893. The next prime is 1384491919. The reversal of 1384491904 is 4091944831.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10582 + ... + 53674.

Almost surely, 2^1384491904 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 1384491904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1384610220).

1384491904 is an abundant number, since it is smaller than the sum of its proper divisors (1384728536).

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

1384491904 is an equidigital number, since it uses as much as digits as its factorization.

1384491904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43358 (or 43346 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 43.

The square root of 1384491904 is about 37208.7611188548. The cubic root of 1384491904 is about 1114.5429441774.

The spelling of 1384491904 in words is "one billion, three hundred eighty-four million, four hundred ninety-one thousand, nine hundred four".