1401256 has 16 divisors (see below), whose sum is σ = 2665440. Its totient is φ = 690480.

The previous prime is 1401247. The next prime is 1401263. The reversal of 1401256 is 6521041.

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, 666 + ... + 1801.

It is an arithmetic number, because the mean of its divisors is an integer number (166590).

2^1401256 is an apocalyptic number.

It is an amenable number.

1401256 is a deficient number, since it is larger than the sum of its proper divisors (1264184).

1401256 is a wasteful number, since it uses less digits than its factorization.

1401256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2544 (or 2540 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1401256 is about 1183.7465945041. The cubic root of 1401256 is about 111.9023383352.

Adding to 1401256 its reverse (6521041), we get a palindrome (7922297).

The spelling of 1401256 in words is "one million, four hundred one thousand, two hundred fifty-six".