220209630 has 32 divisors (see below), whose sum is σ = 531283968. Its totient is φ = 58413600.

The previous prime is 220209629. The next prime is 220209631. The reversal of 220209630 is 36902022.

It is an interprime number because it is at equal distance from previous prime (220209629) and next prime (220209631).

It is a super-2 number, since 2×220209630² = 96984562289473800, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 220209630.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220209631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13486 + ... + 24945.

It is an arithmetic number, because the mean of its divisors is an integer number (16602624).

Almost surely, 2^220209630 is an apocalyptic number.

220209630 is an abundant number, since it is smaller than the sum of its proper divisors (311074338).

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

220209630 is a wasteful number, since it uses less digits than its factorization.

220209630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38632.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 220209630 is about 14839.4619174686. The cubic root of 220209630 is about 603.8727547250.

The spelling of 220209630 in words is "two hundred twenty million, two hundred nine thousand, six hundred thirty".