1420321312 has 24 divisors (see below), whose sum is σ = 2799014400. Its totient is φ = 709460544.

The previous prime is 1420321297. The next prime is 1420321319. The reversal of 1420321312 is 2131230241.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1420321312.

It is not an unprimeable number, because it can be changed into a prime (1420321319) 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, 11889 + ... + 54607.

It is an arithmetic number, because the mean of its divisors is an integer number (116625600).

Almost surely, 2^1420321312 is an apocalyptic number.

It is an amenable number.

1420321312 is a deficient number, since it is larger than the sum of its proper divisors (1378693088).

1420321312 is a wasteful number, since it uses less digits than its factorization.

1420321312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43768 (or 43760 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1420321312 is about 37687.1504892583. The cubic root of 1420321312 is about 1124.0756356274.

Adding to 1420321312 its reverse (2131230241), we get a palindrome (3551551553).

The spelling of 1420321312 in words is "one billion, four hundred twenty million, three hundred twenty-one thousand, three hundred twelve".