1421256 has 16 divisors (see below), whose sum is σ = 3553200. Its totient is φ = 473744.

The previous prime is 1421249. The next prime is 1421267. The reversal of 1421256 is 6521241.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29586 + ... + 29633.

It is an arithmetic number, because the mean of its divisors is an integer number (222075).

2^1421256 is an apocalyptic number.

It is an amenable number.

1421256 is an abundant number, since it is smaller than the sum of its proper divisors (2131944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1421256 is a wasteful number, since it uses less digits than its factorization.

1421256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59228 (or 59224 counting only the distinct ones).

The product of its digits is 480, while the sum is 21.

The square root of 1421256 is about 1192.1644181907. The cubic root of 1421256 is about 112.4322159568.

Adding to 1421256 its reverse (6521241), we get a palindrome (7942497).

The spelling of 1421256 in words is "one million, four hundred twenty-one thousand, two hundred fifty-six".