4220402 has 8 divisors (see below), whose sum is σ = 6534912. Its totient is φ = 2042100.

The previous prime is 4220393. The next prime is 4220423. The reversal of 4220402 is 2040224.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33974 + ... + 34097.

It is an arithmetic number, because the mean of its divisors is an integer number (816864).

Almost surely, 2^4220402 is an apocalyptic number.

4220402 is a deficient number, since it is larger than the sum of its proper divisors (2314510).

4220402 is a wasteful number, since it uses less digits than its factorization.

4220402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68104.

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 4220402 is about 2054.3617013564. The cubic root of 4220402 is about 161.6036901177.

Adding to 4220402 its reverse (2040224), we get a palindrome (6260626).

The spelling of 4220402 in words is "four million, two hundred twenty thousand, four hundred two".