1392899760 has 320 divisors, whose sum is σ = 5806771200. Its totient is φ = 299593728.

The previous prime is 1392899749. The next prime is 1392899771. The reversal of 1392899760 is 679982931.

It is an interprime number because it is at equal distance from previous prime (1392899749) and next prime (1392899771).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 1392899697 and 1392899706.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 254331 + ... + 259749.

It is an arithmetic number, because the mean of its divisors is an integer number (18146160).

Almost surely, 2^1392899760 is an apocalyptic number.

1392899760 is a gapful number since it is divisible by the number (10) 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 1392899760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2903385600).

1392899760 is an abundant number, since it is smaller than the sum of its proper divisors (4413871440).

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

1392899760 is a wasteful number, since it uses less digits than its factorization.

1392899760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5465 (or 5453 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 54.

The square root of 1392899760 is about 37321.5723141456. The cubic root of 1392899760 is about 1116.7945549922.

The spelling of 1392899760 in words is "one billion, three hundred ninety-two million, eight hundred ninety-nine thousand, seven hundred sixty".