1439306712 has 128 divisors (see below), whose sum is σ = 4088280000. Its totient is φ = 469048320.

The previous prime is 1439306689. The next prime is 1439306731. The reversal of 1439306712 is 2176039341.

It is a super-2 number, since 2×1439306712² = 4143207622416501888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4123914 + ... + 4124262.

Almost surely, 2^1439306712 is an apocalyptic number.

1439306712 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 1439306712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2044140000).

1439306712 is an abundant number, since it is smaller than the sum of its proper divisors (2648973288).

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

1439306712 is a wasteful number, since it uses less digits than its factorization.

1439306712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738 (or 728 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 1439306712 is about 37938.1959507829. The cubic root of 1439306712 is about 1129.0619808475.

The spelling of 1439306712 in words is "one billion, four hundred thirty-nine million, three hundred six thousand, seven hundred twelve".