1392212936 has 8 divisors (see below), whose sum is σ = 2610399270. Its totient is φ = 696106464.

The previous prime is 1392212929. The next prime is 1392212951. The reversal of 1392212936 is 6392122931.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1082804836 + 309408100 = 32906^2 + 17590^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 1392212936.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 87013301 + ... + 87013316.

Almost surely, 2^1392212936 is an apocalyptic number.

It is an amenable number.

1392212936 is a deficient number, since it is larger than the sum of its proper divisors (1218186334).

1392212936 is a wasteful number, since it uses less digits than its factorization.

1392212936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174026623 (or 174026619 counting only the distinct ones).

The product of its digits is 34992, while the sum is 38.

The square root of 1392212936 is about 37312.3697451663. The cubic root of 1392212936 is about 1116.6109649897.

The spelling of 1392212936 in words is "one billion, three hundred ninety-two million, two hundred twelve thousand, nine hundred thirty-six".