220630040 has 32 divisors (see below), whose sum is σ = 498789360. Its totient is φ = 87830400.

The previous prime is 220630037. The next prime is 220630049. The reversal of 220630040 is 40036022.

It is a super-2 number, since 2×220630040² = 97355229100803200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220630049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4631 + ... + 21510.

Almost surely, 2^220630040 is an apocalyptic number.

220630040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220630040 is an abundant number, since it is smaller than the sum of its proper divisors (278159320).

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

220630040 is a wasteful number, since it uses less digits than its factorization.

220630040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26363 (or 26359 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 220630040 is about 14853.6204340895. The cubic root of 220630040 is about 604.2568020469.

Adding to 220630040 its reverse (40036022), we get a palindrome (260666062).

The spelling of 220630040 in words is "two hundred twenty million, six hundred thirty thousand, forty".