1406634441421 has 16 divisors (see below), whose sum is σ = 1560596382720. Its totient is φ = 1257022332720.

The previous prime is 1406634441383. The next prime is 1406634441473. The reversal of 1406634441421 is 1241444366041.

It is not a de Polignac number, because 1406634441421 - 2³³ = 1398044506829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1406634141421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17393746 + ... + 17474428.

It is an arithmetic number, because the mean of its divisors is an integer number (97537273920).

Almost surely, 2^{1406634441421} is an apocalyptic number.

1406634441421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1406634441421 is a deficient number, since it is larger than the sum of its proper divisors (153961941299).

1406634441421 is a wasteful number, since it uses less digits than its factorization.

1406634441421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107616.

The product of its (nonzero) digits is 221184, while the sum is 40.

The spelling of 1406634441421 in words is "one trillion, four hundred six billion, six hundred thirty-four million, four hundred forty-one thousand, four hundred twenty-one".