1401420222 has 96 divisors (see below), whose sum is σ = 3247934976. Its totient is φ = 435758400.

The previous prime is 1401420203. The next prime is 1401420227. The reversal of 1401420222 is 2220241041.

1401420222 is a `hidden beast` number, since 1 + 401 + 42 + 0 + 222 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 1401420195 and 1401420204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401420227) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5328463 + ... + 5328725.

It is an arithmetic number, because the mean of its divisors is an integer number (33832656).

Almost surely, 2^1401420222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1401420222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1623967488).

1401420222 is an abundant number, since it is smaller than the sum of its proper divisors (1846514754).

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

1401420222 is a wasteful number, since it uses less digits than its factorization.

1401420222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566 (or 563 counting only the distinct ones).

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

The square root of 1401420222 is about 37435.5475717933. The cubic root of 1401420222 is about 1119.0670967728.

Adding to 1401420222 its reverse (2220241041), we get a palindrome (3621661263).

The spelling of 1401420222 in words is "one billion, four hundred one million, four hundred twenty thousand, two hundred twenty-two".