1422021402 has 12 divisors (see below), whose sum is σ = 3081046410. Its totient is φ = 474007128.

The previous prime is 1422021361. The next prime is 1422021431. The reversal of 1422021402 is 2041202241.

It can be written as a sum of positive squares in only one way, i.e., 1265296041 + 156725361 = 35571^2 + 12519^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 79001189 = 1422021402 / (1 + 4 + 2 + 2 + 0 + 2 + 1 + 4 + 0 + 2).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 39500577 + ... + 39500612.

Almost surely, 2^1422021402 is an apocalyptic number.

1422021402 is an abundant number, since it is smaller than the sum of its proper divisors (1659025008).

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

1422021402 is a wasteful number, since it uses less digits than its factorization.

1422021402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79001197 (or 79001194 counting only the distinct ones).

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

The square root of 1422021402 is about 37709.6990441451. The cubic root of 1422021402 is about 1124.5239538477.

Adding to 1422021402 its reverse (2041202241), we get a palindrome (3463223643).

The spelling of 1422021402 in words is "one billion, four hundred twenty-two million, twenty-one thousand, four hundred two".