1392729360 has 240 divisors, whose sum is σ = 4789276800. Its totient is φ = 334540800.

The previous prime is 1392729347. The next prime is 1392729361. The reversal of 1392729360 is 639272931.

It is a tau number, because it is divible by the number of its divisors (240).

It is not an unprimeable number, because it can be changed into a prime (1392729361) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5778840 + ... + 5779080.

It is an arithmetic number, because the mean of its divisors is an integer number (19955320).

Almost surely, 2^1392729360 is an apocalyptic number.

1392729360 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 1392729360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2394638400).

1392729360 is an abundant number, since it is smaller than the sum of its proper divisors (3396547440).

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

1392729360 is a wasteful number, since it uses less digits than its factorization.

1392729360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478 (or 461 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 42.

The square root of 1392729360 is about 37319.2893823020. The cubic root of 1392729360 is about 1116.7490122191.

The spelling of 1392729360 in words is "one billion, three hundred ninety-two million, seven hundred twenty-nine thousand, three hundred sixty".