14221670 has 16 divisors (see below), whose sum is σ = 26224128. Its totient is φ = 5549760.

The previous prime is 14221667. The next prime is 14221681. The reversal of 14221670 is 7612241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16934 + ... + 17753.

It is an arithmetic number, because the mean of its divisors is an integer number (1639008).

Almost surely, 2^14221670 is an apocalyptic number.

14221670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

14221670 is a deficient number, since it is larger than the sum of its proper divisors (12002458).

14221670 is a wasteful number, since it uses less digits than its factorization.

14221670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34735.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 14221670 is about 3771.1629506029. The cubic root of 14221670 is about 242.2796098755.

It can be divided in two parts, 142 and 21670, that added together give a palindrome (21812).

The spelling of 14221670 in words is "fourteen million, two hundred twenty-one thousand, six hundred seventy".