220202002404 has 18 divisors (see below), whose sum is σ = 556621728390. Its totient is φ = 73400667456.

The previous prime is 220202002399. The next prime is 220202002409. The reversal of 220202002404 is 404200202022.

220202002404 is a `hidden beast` number, since 220 + 2 + 0 + 200 + 240 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (220202002399) and next prime (220202002409).

It can be written as a sum of positive squares in only one way, i.e., 183613964004 + 36588038400 = 428502^2 + 191280^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (220202002409) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3058361109 + ... + 3058361180.

It is an arithmetic number, because the mean of its divisors is an integer number (30923429355).

Almost surely, 2^220202002404 is an apocalyptic number.

It is an amenable number.

220202002404 is an abundant number, since it is smaller than the sum of its proper divisors (336419725986).

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

220202002404 is a wasteful number, since it uses less digits than its factorization.

220202002404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6116722299 (or 6116722294 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

Adding to 220202002404 its reverse (404200202022), we get a palindrome (624402204426).

The spelling of 220202002404 in words is "two hundred twenty billion, two hundred two million, two thousand, four hundred four".