1401040344 has 64 divisors (see below), whose sum is σ = 3952800000. Its totient is φ = 409915520.

The previous prime is 1401040301. The next prime is 1401040351. The reversal of 1401040344 is 4430401041.

It is a self number, because there is not a number n which added to its sum of digits gives 1401040344.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83844 + ... + 99155.

It is an arithmetic number, because the mean of its divisors is an integer number (61762500).

Almost surely, 2^1401040344 is an apocalyptic number.

It is an amenable number.

1401040344 is an abundant number, since it is smaller than the sum of its proper divisors (2551759656).

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

1401040344 is a wasteful number, since it uses less digits than its factorization.

1401040344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183048 (or 183044 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1401040344 is about 37430.4734674837. The cubic root of 1401040344 is about 1118.9659737881.

Adding to 1401040344 its reverse (4430401041), we get a palindrome (5831441385).

The spelling of 1401040344 in words is "one billion, four hundred one million, forty thousand, three hundred forty-four".