1400422 has 4 divisors (see below), whose sum is σ = 2100636. Its totient is φ = 700210.

The previous prime is 1400417. The next prime is 1400423. The reversal of 1400422 is 2240041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2240041 = 89 ⋅25169.

It is a super-2 number, since 2×1400422² = 3922363556168, which contains 22 as substring.

It is a Smith number, since the sum of its digits (13) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 350104 + ... + 350107.

It is an arithmetic number, because the mean of its divisors is an integer number (525159).

2^1400422 is an apocalyptic number.

1400422 is a deficient number, since it is larger than the sum of its proper divisors (700214).

1400422 is an equidigital number, since it uses as much as digits as its factorization.

1400422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700213.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 1400422 is about 1183.3942707314. The cubic root of 1400422 is about 111.8801332393.

Adding to 1400422 its reverse (2240041), we get a palindrome (3640463).

The spelling of 1400422 in words is "one million, four hundred thousand, four hundred twenty-two".