1421399912 has 16 divisors (see below), whose sum is σ = 2665527360. Its totient is φ = 710592624.

The previous prime is 1421399909. The next prime is 1421399927. The reversal of 1421399912 is 2199931241.

It is a self number, because there is not a number n which added to its sum of digits gives 1421399912.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87623 + ... + 102569.

It is an arithmetic number, because the mean of its divisors is an integer number (166595460).

Almost surely, 2^1421399912 is an apocalyptic number.

It is an amenable number.

1421399912 is a deficient number, since it is larger than the sum of its proper divisors (1244127448).

1421399912 is a wasteful number, since it uses less digits than its factorization.

1421399912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26840 (or 26836 counting only the distinct ones).

The product of its digits is 34992, while the sum is 41.

The square root of 1421399912 is about 37701.4576906517. The cubic root of 1421399912 is about 1124.3601067518.

The spelling of 1421399912 in words is "one billion, four hundred twenty-one million, three hundred ninety-nine thousand, nine hundred twelve".