402422422 has 16 divisors (see below), whose sum is σ = 608828400. Its totient is φ = 199487488.

The previous prime is 402422417. The next prime is 402422443. The reversal of 402422422 is 224224204.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 402422393 and 402422402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114954 + ... + 118402.

It is an arithmetic number, because the mean of its divisors is an integer number (38051775).

Almost surely, 2^402422422 is an apocalyptic number.

402422422 is a deficient number, since it is larger than the sum of its proper divisors (206405978).

402422422 is a wasteful number, since it uses less digits than its factorization.

402422422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3935.

The product of its (nonzero) digits is 2048, while the sum is 22.

The square root of 402422422 is about 20060.4691370865. The cubic root of 402422422 is about 738.2906870633.

Adding to 402422422 its reverse (224224204), we get a palindrome (626646626).

The spelling of 402422422 in words is "four hundred two million, four hundred twenty-two thousand, four hundred twenty-two".