1399712832 has 336 divisors, whose sum is σ = 4883139840. Its totient is φ = 391910400.

The previous prime is 1399712827. The next prime is 1399712851. The reversal of 1399712832 is 2382179931.

It is a tau number, because it is divible by the number of its divisors (336).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5164857 + ... + 5165127.

Almost surely, 2^1399712832 is an apocalyptic number.

1399712832 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 1399712832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2441569920).

1399712832 is an abundant number, since it is smaller than the sum of its proper divisors (3483427008).

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

1399712832 is a wasteful number, since it uses less digits than its factorization.

1399712832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367 (or 344 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 1399712832 is about 37412.7362271192. The cubic root of 1399712832 is about 1118.6124483591.

The spelling of 1399712832 in words is "one billion, three hundred ninety-nine million, seven hundred twelve thousand, eight hundred thirty-two".