1384531356 has 96 divisors (see below), whose sum is σ = 3538662400. Its totient is φ = 418784256.

The previous prime is 1384531321. The next prime is 1384531361. The reversal of 1384531356 is 6531354831.

It is a Harshad number since it is a multiple of its sum of digits (39).

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 31 ways as a sum of consecutive naturals, for example, 3197316 + ... + 3197748.

Almost surely, 2^1384531356 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 1384531356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1769331200).

1384531356 is an abundant number, since it is smaller than the sum of its proper divisors (2154131044).

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

1384531356 is a wasteful number, since it uses less digits than its factorization.

1384531356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755 (or 753 counting only the distinct ones).

The product of its digits is 129600, while the sum is 39.

The square root of 1384531356 is about 37209.2912590391. The cubic root of 1384531356 is about 1114.5535306196.

The spelling of 1384531356 in words is "one billion, three hundred eighty-four million, five hundred thirty-one thousand, three hundred fifty-six".