6401022 has 16 divisors (see below), whose sum is σ = 13044240. Its totient is φ = 2093312.

The previous prime is 6401011. The next prime is 6401029. The reversal of 6401022 is 2201046.

It is a junction number, because it is equal to n+sod(n) for n = 6400992 and 6401010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6401029) 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, 9747 + ... + 10382.

It is an arithmetic number, because the mean of its divisors is an integer number (815265).

Almost surely, 2^6401022 is an apocalyptic number.

6401022 is an abundant number, since it is smaller than the sum of its proper divisors (6643218).

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

6401022 is a wasteful number, since it uses less digits than its factorization.

6401022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20187.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 6401022 is about 2530.0241105571. The cubic root of 6401022 is about 185.6734355347.

Adding to 6401022 its reverse (2201046), we get a palindrome (8602068).

The spelling of 6401022 in words is "six million, four hundred one thousand, twenty-two".