1392399360 has 528 divisors, whose sum is σ = 5472073152. Its totient is φ = 324403200.

The previous prime is 1392399343. The next prime is 1392399391. The reversal of 1392399360 is 639932931.

It is a tau number, because it is divible by the number of its divisors (528).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

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, 20782047 + ... + 20782113.

Almost surely, 2^1392399360 is an apocalyptic number.

1392399360 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 1392399360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2736036576).

1392399360 is an abundant number, since it is smaller than the sum of its proper divisors (4079673792).

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

1392399360 is a wasteful number, since it uses less digits than its factorization.

1392399360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150 (or 129 counting only the distinct ones).

The product of its (nonzero) digits is 236196, while the sum is 45.

The square root of 1392399360 is about 37314.8678143177. The cubic root of 1392399360 is about 1116.6608026226.

The spelling of 1392399360 in words is "one billion, three hundred ninety-two million, three hundred ninety-nine thousand, three hundred sixty".