1421406866 has 8 divisors (see below), whose sum is σ = 2325938544. Its totient is φ = 646094020.

The previous prime is 1421406829. The next prime is 1421406887. The reversal of 1421406866 is 6686041241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

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, 32304680 + ... + 32304723.

It is an arithmetic number, because the mean of its divisors is an integer number (290742318).

Almost surely, 2^1421406866 is an apocalyptic number.

1421406866 is a deficient number, since it is larger than the sum of its proper divisors (904531678).

1421406866 is a wasteful number, since it uses less digits than its factorization.

1421406866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64609416.

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 1421406866 is about 37701.5499150897. The cubic root of 1421406866 is about 1124.3619403402.

The spelling of 1421406866 in words is "one billion, four hundred twenty-one million, four hundred six thousand, eight hundred sixty-six".