1420864392 has 32 divisors (see below), whose sum is σ = 3567686400. Its totient is φ = 471551424.

The previous prime is 1420864381. The next prime is 1420864411. The reversal of 1420864392 is 2934680241.

It is a self number, because there is not a number n which added to its sum of digits gives 1420864392.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123768 + ... + 134759.

It is an arithmetic number, because the mean of its divisors is an integer number (111490200).

Almost surely, 2^1420864392 is an apocalyptic number.

1420864392 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1420864392 is an abundant number, since it is smaller than the sum of its proper divisors (2146822008).

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

1420864392 is a wasteful number, since it uses less digits than its factorization.

1420864392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258765 (or 258761 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 1420864392 is about 37694.3549089250. The cubic root of 1420864392 is about 1124.2188861255.

The spelling of 1420864392 in words is "one billion, four hundred twenty million, eight hundred sixty-four thousand, three hundred ninety-two".