1400022 has 48 divisors (see below), whose sum is σ = 3389568. Its totient is φ = 414720.

The previous prime is 1400017. The next prime is 1400023. The reversal of 1400022 is 2200041.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1399977 and 1400013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7158 + ... + 7350.

It is an arithmetic number, because the mean of its divisors is an integer number (70616).

2^1400022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1400022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1694784).

1400022 is an abundant number, since it is smaller than the sum of its proper divisors (1989546).

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

1400022 is a wasteful number, since it uses less digits than its factorization.

1400022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245 (or 242 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 1400022 is about 1183.2252532802. The cubic root of 1400022 is about 111.8694801850.

Adding to 1400022 its reverse (2200041), we get a palindrome (3600063).

The spelling of 1400022 in words is "one million, four hundred thousand, twenty-two".