220401336 has 16 divisors (see below), whose sum is σ = 551003400. Its totient is φ = 73467104.

The previous prime is 220401329. The next prime is 220401371. The reversal of 220401336 is 633104022.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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, 4591671 + ... + 4591718.

Almost surely, 2^220401336 is an apocalyptic number.

It is an amenable number.

220401336 is an abundant number, since it is smaller than the sum of its proper divisors (330602064).

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

220401336 is a wasteful number, since it uses less digits than its factorization.

220401336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9183398 (or 9183394 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 220401336 is about 14845.9198435126. The cubic root of 220401336 is about 604.0479399985.

Adding to 220401336 its reverse (633104022), we get a palindrome (853505358).

The spelling of 220401336 in words is "two hundred twenty million, four hundred one thousand, three hundred thirty-six".