220623536 has 40 divisors (see below), whose sum is σ = 489697824. Its totient is φ = 94325760.

The previous prime is 220623517. The next prime is 220623541. The reversal of 220623536 is 635326022.

It is a junction number, because it is equal to n+sod(n) for n = 220623499 and 220623508.

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 7 ways as a sum of consecutive naturals, for example, 49496 + ... + 53768.

Almost surely, 2^220623536 is an apocalyptic number.

It is an amenable number.

220623536 is an abundant number, since it is smaller than the sum of its proper divisors (269074288).

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

220623536 is a wasteful number, since it uses less digits than its factorization.

220623536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4749 (or 4743 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 29.

The square root of 220623536 is about 14853.4014959537. The cubic root of 220623536 is about 604.2508643168.

Adding to 220623536 its reverse (635326022), we get a palindrome (855949558).

The spelling of 220623536 in words is "two hundred twenty million, six hundred twenty-three thousand, five hundred thirty-six".