1421404811 has 8 divisors (see below), whose sum is σ = 1478638800. Its totient is φ = 1364718880.

The previous prime is 1421404793. The next prime is 1421404871. The reversal of 1421404811 is 1184041241.

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

It is a cyclic number.

It is not a de Polignac number, because 1421404811 - 2¹⁴ = 1421388427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1421404871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131720 + ... + 142101.

It is an arithmetic number, because the mean of its divisors is an integer number (184829850).

Almost surely, 2^1421404811 is an apocalyptic number.

1421404811 is a deficient number, since it is larger than the sum of its proper divisors (57233989).

1421404811 is a wasteful number, since it uses less digits than its factorization.

1421404811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274029.

The product of its (nonzero) digits is 1024, while the sum is 26.

The square root of 1421404811 is about 37701.5226615584. The cubic root of 1421404811 is about 1124.3613984909.

The spelling of 1421404811 in words is "one billion, four hundred twenty-one million, four hundred four thousand, eight hundred eleven".