1422001402 has 4 divisors (see below), whose sum is σ = 2133002106. Its totient is φ = 711000700.

The previous prime is 1422001369. The next prime is 1422001411. The reversal of 1422001402 is 2041002241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2041002241 = 643 ⋅3174187.

It can be written as a sum of positive squares in only one way, i.e., 1180540881 + 241460521 = 34359^2 + 15539^2 .

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 as a sum of consecutive naturals, namely, 355500349 + ... + 355500352.

Almost surely, 2^1422001402 is an apocalyptic number.

1422001402 is a deficient number, since it is larger than the sum of its proper divisors (711000704).

1422001402 is an equidigital number, since it uses as much as digits as its factorization.

1422001402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711000703.

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

The square root of 1422001402 is about 37709.4338594469. The cubic root of 1422001402 is about 1124.5186818726.

Adding to 1422001402 its reverse (2041002241), we get a palindrome (3463003643).

The spelling of 1422001402 in words is "one billion, four hundred twenty-two million, one thousand, four hundred two".