1406834221 has 8 divisors (see below), whose sum is σ = 1547288064. Its totient is φ = 1270985520.

The previous prime is 1406834213. The next prime is 1406834227. The reversal of 1406834221 is 1224386041.

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 1406834221 - 2³ = 1406834213 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 (1406834227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1150645 + ... + 1151866.

It is an arithmetic number, because the mean of its divisors is an integer number (193411008).

Almost surely, 2^1406834221 is an apocalyptic number.

It is an amenable number.

1406834221 is a deficient number, since it is larger than the sum of its proper divisors (140453843).

1406834221 is a wasteful number, since it uses less digits than its factorization.

1406834221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2302571.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 1406834221 is about 37507.7888044603. The cubic root of 1406834221 is about 1120.5063136486.

The spelling of 1406834221 in words is "one billion, four hundred six million, eight hundred thirty-four thousand, two hundred twenty-one".