1401022243 has 8 divisors (see below), whose sum is σ = 1416388896. Its totient is φ = 1385736000.

The previous prime is 1401022223. The next prime is 1401022267. The reversal of 1401022243 is 3422201041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1401022243 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1401022243.

It is not an unprimeable number, because it can be changed into a prime (1401022223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15273 + ... + 55093.

It is an arithmetic number, because the mean of its divisors is an integer number (177048612).

Almost surely, 2^1401022243 is an apocalyptic number.

1401022243 is a deficient number, since it is larger than the sum of its proper divisors (15366653).

1401022243 is a wasteful number, since it uses less digits than its factorization.

1401022243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40205.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1401022243 is about 37430.2316717383. The cubic root of 1401022243 is about 1118.9611548713.

Adding to 1401022243 its reverse (3422201041), we get a palindrome (4823223284).

The spelling of 1401022243 in words is "one billion, four hundred one million, twenty-two thousand, two hundred forty-three".