1392668494 has 32 divisors (see below), whose sum is σ = 2446891200. Its totient is φ = 594228096.

The previous prime is 1392668489. The next prime is 1392668503. The reversal of 1392668494 is 4948662931.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155482 + ... + 164194.

It is an arithmetic number, because the mean of its divisors is an integer number (76465350).

Almost surely, 2^1392668494 is an apocalyptic number.

1392668494 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1392668494 is a deficient number, since it is larger than the sum of its proper divisors (1054222706).

1392668494 is an equidigital number, since it uses as much as digits as its factorization.

1392668494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8969 (or 8955 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 52.

The square root of 1392668494 is about 37318.4738969857. The cubic root of 1392668494 is about 1116.7327436754.

The spelling of 1392668494 in words is "one billion, three hundred ninety-two million, six hundred sixty-eight thousand, four hundred ninety-four".