1392099108 has 12 divisors (see below), whose sum is σ = 3248231280. Its totient is φ = 464033032.

The previous prime is 1392099091. The next prime is 1392099109. The reversal of 1392099108 is 8019902931.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 1392099108.

It is not an unprimeable number, because it can be changed into a prime (1392099109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58004118 + ... + 58004141.

It is an arithmetic number, because the mean of its divisors is an integer number (270685940).

Almost surely, 2^1392099108 is an apocalyptic number.

It is an amenable number.

1392099108 is an abundant number, since it is smaller than the sum of its proper divisors (1856132172).

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

1392099108 is a wasteful number, since it uses less digits than its factorization.

1392099108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116008266 (or 116008264 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 42.

The square root of 1392099108 is about 37310.8443753287. The cubic root of 1392099108 is about 1116.5805326102.

The spelling of 1392099108 in words is "one billion, three hundred ninety-two million, ninety-nine thousand, one hundred eight".