1401144 has 32 divisors (see below), whose sum is σ = 3552000. Its totient is φ = 460512.

The previous prime is 1401139. The next prime is 1401151. The reversal of 1401144 is 4411041.

1401144 is nontrivially palindromic in base 11.

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, 1527 + ... + 2265.

It is an arithmetic number, because the mean of its divisors is an integer number (111000).

2^1401144 is an apocalyptic number.

It is an amenable number.

1401144 is an abundant number, since it is smaller than the sum of its proper divisors (2150856).

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

1401144 is a wasteful number, since it uses less digits than its factorization.

1401144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 827 (or 823 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 1401144 is about 1183.6992861365. The cubic root of 1401144 is about 111.8993568681.

Adding to 1401144 its reverse (4411041), we get a palindrome (5812185).

The spelling of 1401144 in words is "one million, four hundred one thousand, one hundred forty-four".