1421297286 has 12 divisors (see below), whose sum is σ = 2842779276. Its totient is φ = 473734980.

The previous prime is 1421297239. The next prime is 1421297287. The reversal of 1421297286 is 6827921241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421297287) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 84651 + ... + 100041.

It is an arithmetic number, because the mean of its divisors is an integer number (236898273).

Almost surely, 2^1421297286 is an apocalyptic number.

1421297286 is an abundant number, since it is smaller than the sum of its proper divisors (1421481990).

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

1421297286 is an frugal number, since it uses more digits than its factorization.

1421297286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30787 (or 15396 counting only the distinct ones).

The product of its digits is 96768, while the sum is 42.

The square root of 1421297286 is about 37700.0966311759. The cubic root of 1421297286 is about 1124.3330462563. Note that the first 3 decimals are identical.

The spelling of 1421297286 in words is "one billion, four hundred twenty-one million, two hundred ninety-seven thousand, two hundred eighty-six".