1421344166 has 12 divisors (see below), whose sum is σ = 2343456276. Its totient is φ = 646065420.

The previous prime is 1421344157. The next prime is 1421344187. The reversal of 1421344166 is 6614431241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2936420 + ... + 2936903.

It is an arithmetic number, because the mean of its divisors is an integer number (195288023).

Almost surely, 2^1421344166 is an apocalyptic number.

1421344166 is a deficient number, since it is larger than the sum of its proper divisors (922112110).

1421344166 is a wasteful number, since it uses less digits than its factorization.

1421344166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5873347 (or 5873336 counting only the distinct ones).

The product of its digits is 13824, while the sum is 32.

The square root of 1421344166 is about 37700.7183751185. The cubic root of 1421344166 is about 1124.3454077691.

The spelling of 1421344166 in words is "one billion, four hundred twenty-one million, three hundred forty-four thousand, one hundred sixty-six".