402022402 has 8 divisors (see below), whose sum is σ = 604772496. Its totient is φ = 200431572.

The previous prime is 402022399. The next prime is 402022403. The reversal of 402022402 is 204220204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (402022403) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 288948 + ... + 290335.

It is an arithmetic number, because the mean of its divisors is an integer number (75596562).

Almost surely, 2^402022402 is an apocalyptic number.

402022402 is a deficient number, since it is larger than the sum of its proper divisors (202750094).

402022402 is a wasteful number, since it uses less digits than its factorization.

402022402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579632.

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 402022402 is about 20050.4963030844. The cubic root of 402022402 is about 738.0459782411.

Adding to 402022402 its reverse (204220204), we get a palindrome (606242606).

The spelling of 402022402 in words is "four hundred two million, twenty-two thousand, four hundred two".