4222420402 has 8 divisors (see below), whose sum is σ = 6334068636. Its totient is φ = 2111064192.

The previous prime is 4222420343. The next prime is 4222420403. The reversal of 4222420402 is 2040242224.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3689226121 + 533194281 = 60739^2 + 23091^2 .

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 (4222420403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32323 + ... + 97414.

Almost surely, 2^4222420402 is an apocalyptic number.

4222420402 is a deficient number, since it is larger than the sum of its proper divisors (2111648234).

4222420402 is a wasteful number, since it uses less digits than its factorization.

4222420402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146012.

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

The square root of 4222420402 is about 64980.1539087128. The cubic root of 4222420402 is about 1616.2944826635.

Adding to 4222420402 its reverse (2040242224), we get a palindrome (6262662626).

It can be divided in two parts, 42224 and 20402, that added together give a palindrome (62626).

The spelling of 4222420402 in words is "four billion, two hundred twenty-two million, four hundred twenty thousand, four hundred two".