1399032192 has 64 divisors (see below), whose sum is σ = 3727067760. Its totient is φ = 464977920.

The previous prime is 1399032191. The next prime is 1399032199. The reversal of 1399032192 is 2912309931.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 1399032192.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1399032191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130392 + ... + 140712.

Almost surely, 2^1399032192 is an apocalyptic number.

1399032192 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 1399032192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1863533880).

1399032192 is an abundant number, since it is smaller than the sum of its proper divisors (2328035568).

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

1399032192 is a wasteful number, since it uses less digits than its factorization.

1399032192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10691 (or 10679 counting only the distinct ones).

The product of its (nonzero) digits is 26244, while the sum is 39.

The square root of 1399032192 is about 37403.6387534689. The cubic root of 1399032192 is about 1118.4311026326.

The spelling of 1399032192 in words is "one billion, three hundred ninety-nine million, thirty-two thousand, one hundred ninety-two".