1392931222 has 4 divisors (see below), whose sum is σ = 2089396836. Its totient is φ = 696465610.

The previous prime is 1392931181. The next prime is 1392931237. The reversal of 1392931222 is 2221392931.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 348232804 + ... + 348232807.

It is an arithmetic number, because the mean of its divisors is an integer number (522349209).

Almost surely, 2^1392931222 is an apocalyptic number.

1392931222 is a deficient number, since it is larger than the sum of its proper divisors (696465614).

1392931222 is an equidigital number, since it uses as much as digits as its factorization.

1392931222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696465613.

The product of its digits is 11664, while the sum is 34.

The square root of 1392931222 is about 37321.9938106206. The cubic root of 1392931222 is about 1116.8029634282.

The spelling of 1392931222 in words is "one billion, three hundred ninety-two million, nine hundred thirty-one thousand, two hundred twenty-two".