1399428029832 has 256 divisors, whose sum is σ = 4252543057920. Its totient is φ = 375375513600.

The previous prime is 1399428029821. The next prime is 1399428029837. The reversal of 1399428029832 is 2389208249931.

It is not an unprimeable number, because it can be changed into a prime (1399428029837) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 23161053 + ... + 23221395.

It is an arithmetic number, because the mean of its divisors is an integer number (16611496320).

Almost surely, 2^{1399428029832} is an apocalyptic number.

1399428029832 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 1399428029832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2126271528960).

1399428029832 is an abundant number, since it is smaller than the sum of its proper divisors (2853115028088).

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

1399428029832 is a wasteful number, since it uses less digits than its factorization.

1399428029832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60524 (or 60520 counting only the distinct ones).

The product of its (nonzero) digits is 13436928, while the sum is 60.

The spelling of 1399428029832 in words is "one trillion, three hundred ninety-nine billion, four hundred twenty-eight million, twenty-nine thousand, eight hundred thirty-two".