1390984292 has 12 divisors (see below), whose sum is σ = 2435844096. Its totient is φ = 695028840.

The previous prime is 1390984289. The next prime is 1390984297. The reversal of 1390984292 is 2924890931.

It is not an unprimeable number, because it can be changed into a prime (1390984297) 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, 109028 + ... + 121115.

It is an arithmetic number, because the mean of its divisors is an integer number (202987008).

Almost surely, 2^1390984292 is an apocalyptic number.

It is an amenable number.

1390984292 is a deficient number, since it is larger than the sum of its proper divisors (1044859804).

1390984292 is a wasteful number, since it uses less digits than its factorization.

1390984292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231658 (or 231656 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 47.

The square root of 1390984292 is about 37295.9018123976. The cubic root of 1390984292 is about 1116.2823942893.

The spelling of 1390984292 in words is "one billion, three hundred ninety million, nine hundred eighty-four thousand, two hundred ninety-two".