1401022044 has 36 divisors (see below), whose sum is σ = 3623836216. Its totient is φ = 456146208.

The previous prime is 1401022031. The next prime is 1401022061. The reversal of 1401022044 is 4402201041.

1401022044 is a `hidden beast` number, since 1 + 401 + 0 + 220 + 44 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 450979 + ... + 454074.

Almost surely, 2^1401022044 is an apocalyptic number.

It is an amenable number.

1401022044 is an abundant number, since it is smaller than the sum of its proper divisors (2222814172).

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

1401022044 is a wasteful number, since it uses less digits than its factorization.

1401022044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 905106 (or 905101 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 1401022044 is about 37430.2290134592. The cubic root of 1401022044 is about 1118.9611018926.

Adding to 1401022044 its reverse (4402201041), we get a palindrome (5803223085).

The spelling of 1401022044 in words is "one billion, four hundred one million, twenty-two thousand, forty-four".