1429139712 has 432 divisors, whose sum is σ = 5176062080. Its totient is φ = 342650880.

The previous prime is 1429139693. The next prime is 1429139779. The reversal of 1429139712 is 2179319241.

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

Its product of digits (27216) is a multiple of the sum of its prime divisors (36).

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 47 ways as a sum of consecutive naturals, for example, 109933818 + ... + 109933830.

Almost surely, 2^1429139712 is an apocalyptic number.

1429139712 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 1429139712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2588031040).

1429139712 is an abundant number, since it is smaller than the sum of its proper divisors (3746922368).

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

1429139712 is an equidigital number, since it uses as much as digits as its factorization.

1429139712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87 (or 36 counting only the distinct ones).

The product of its digits is 27216, while the sum is 39.

The square root of 1429139712 is about 37803.9642365718. The cubic root of 1429139712 is about 1126.3972005139.

It can be divided in two parts, 1429 and 139712, that added together give a palindrome (141141).

The spelling of 1429139712 in words is "one billion, four hundred twenty-nine million, one hundred thirty-nine thousand, seven hundred twelve".