1401144256 has 28 divisors (see below), whose sum is σ = 2782427760. Its totient is φ = 700060160.

The previous prime is 1401144253. The next prime is 1401144271. The reversal of 1401144256 is 6524411041.

It is a super-2 number, since 2×1401144256² = 3926410452243587072, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401144253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89460 + ... + 103948.

It is an arithmetic number, because the mean of its divisors is an integer number (99372420).

Almost surely, 2^1401144256 is an apocalyptic number.

1401144256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1401144256 is a deficient number, since it is larger than the sum of its proper divisors (1381283504).

1401144256 is a wasteful number, since it uses less digits than its factorization.

1401144256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16012 (or 16002 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 1401144256 is about 37431.8615086132. The cubic root of 1401144256 is about 1118.9936368311.

Adding to 1401144256 its reverse (6524411041), we get a palindrome (7925555297).

The spelling of 1401144256 in words is "one billion, four hundred one million, one hundred forty-four thousand, two hundred fifty-six".