1402221 has 8 divisors (see below), whose sum is σ = 1905120. Its totient is φ = 917072.

The previous prime is 1402201. The next prime is 1402231. The reversal of 1402221 is 1222041.

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 1402221 - 2⁶ = 1402157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1402197 and 1402206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1402201) 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, 4251 + ... + 4568.

It is an arithmetic number, because the mean of its divisors is an integer number (238140).

2^1402221 is an apocalyptic number.

It is an amenable number.

1402221 is a deficient number, since it is larger than the sum of its proper divisors (502899).

1402221 is an equidigital number, since it uses as much as digits as its factorization.

1402221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8875.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 1402221 is about 1184.1541284816. The cubic root of 1402221 is about 111.9280202894.

Adding to 1402221 its reverse (1222041), we get a palindrome (2624262).

The spelling of 1402221 in words is "one million, four hundred two thousand, two hundred twenty-one".