1400021422 has 16 divisors (see below), whose sum is σ = 2213341200. Its totient is φ = 662333760.

The previous prime is 1400021377. The next prime is 1400021437. The reversal of 1400021422 is 2241200041.

It is a junction number, because it is equal to n+sod(n) for n = 1400021396 and 1400021405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7972 + ... + 53512.

It is an arithmetic number, because the mean of its divisors is an integer number (138333825).

Almost surely, 2^1400021422 is an apocalyptic number.

1400021422 is a deficient number, since it is larger than the sum of its proper divisors (813319778).

1400021422 is a wasteful number, since it uses less digits than its factorization.

1400021422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46371.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 1400021422 is about 37416.8601301606. The cubic root of 1400021422 is about 1118.6946478986.

Adding to 1400021422 its reverse (2241200041), we get a palindrome (3641221463).

The spelling of 1400021422 in words is "one billion, four hundred million, twenty-one thousand, four hundred twenty-two".