220020402 has 16 divisors (see below), whose sum is σ = 502903872. Its totient is φ = 62862960.

The previous prime is 220020401. The next prime is 220020421. The reversal of 220020402 is 204020022.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (220020401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2619249 + ... + 2619332.

It is an arithmetic number, because the mean of its divisors is an integer number (31431492).

Almost surely, 2^220020402 is an apocalyptic number.

220020402 is an abundant number, since it is smaller than the sum of its proper divisors (282883470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220020402 is a wasteful number, since it uses less digits than its factorization.

220020402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5238593.

The product of its (nonzero) digits is 64, while the sum is 12.

The square root of 220020402 is about 14833.0847095269. The cubic root of 220020402 is about 603.6997341655.

Adding to 220020402 its reverse (204020022), we get a palindrome (424040424).

The spelling of 220020402 in words is "two hundred twenty million, twenty thousand, four hundred two".