1394785392 has 540 divisors, whose sum is σ = 5160841560. Its totient is φ = 322882560.

The previous prime is 1394785351. The next prime is 1394785397. The reversal of 1394785392 is 2935874931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1394785397) by changing a digit.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 48096034 + ... + 48096062.

It is an arithmetic number, because the mean of its divisors is an integer number (9557114).

Almost surely, 2^1394785392 is an apocalyptic number.

1394785392 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 1394785392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2580420780).

1394785392 is an abundant number, since it is smaller than the sum of its proper divisors (3766056168).

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

1394785392 is a wasteful number, since it uses less digits than its factorization.

1394785392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102 (or 65 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 51.

The square root of 1394785392 is about 37346.8257285676. The cubic root of 1394785392 is about 1117.2982796815.

The spelling of 1394785392 in words is "one billion, three hundred ninety-four million, seven hundred eighty-five thousand, three hundred ninety-two".