1384239252 has 96 divisors (see below), whose sum is σ = 3657830400. Its totient is φ = 403580800.

The previous prime is 1384239251. The next prime is 1384239257. The reversal of 1384239252 is 2529324831.

It is a super-2 number, since 2×1384239252² = 3832236613555039008, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1384239252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1384239251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1649449 + ... + 1650287.

It is an arithmetic number, because the mean of its divisors is an integer number (38102400).

Almost surely, 2^1384239252 is an apocalyptic number.

1384239252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1384239252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1828915200).

1384239252 is an abundant number, since it is smaller than the sum of its proper divisors (2273591148).

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

1384239252 is a wasteful number, since it uses less digits than its factorization.

1384239252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1317 (or 1315 counting only the distinct ones).

The product of its digits is 103680, while the sum is 39.

The square root of 1384239252 is about 37205.3659033210. The cubic root of 1384239252 is about 1114.4751434596.

The spelling of 1384239252 in words is "one billion, three hundred eighty-four million, two hundred thirty-nine thousand, two hundred fifty-two".