1392033312 has 72 divisors (see below), whose sum is σ = 4055180220. Its totient is φ = 452689920.

The previous prime is 1392033311. The next prime is 1392033317. The reversal of 1392033312 is 2133302931.

It can be written as a sum of positive squares in 2 ways, for example, as 1183635216 + 208398096 = 34404^2 + 14436^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is not an unprimeable number, because it can be changed into a prime (1392033311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47137 + ... + 70752.

Almost surely, 2^1392033312 is an apocalyptic number.

1392033312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1392033312 is an abundant number, since it is smaller than the sum of its proper divisors (2663146908).

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

1392033312 is a wasteful number, since it uses less digits than its factorization.

1392033312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117946 (or 117935 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 27.

The square root of 1392033312 is about 37309.9626373439. The cubic root of 1392033312 is about 1116.5629410250.

The spelling of 1392033312 in words is "one billion, three hundred ninety-two million, thirty-three thousand, three hundred twelve".