220730526 has 24 divisors (see below), whose sum is σ = 478661664. Its totient is φ = 73513440.

The previous prime is 220730501. The next prime is 220730557. The reversal of 220730526 is 625037022.

It is a self number, because there is not a number n which added to its sum of digits gives 220730526.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19266 + ... + 28506.

It is an arithmetic number, because the mean of its divisors is an integer number (19944236).

Almost surely, 2^220730526 is an apocalyptic number.

220730526 is an abundant number, since it is smaller than the sum of its proper divisors (257931138).

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

220730526 is a wasteful number, since it uses less digits than its factorization.

220730526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10576 (or 10573 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 220730526 is about 14857.0025913708. The cubic root of 220730526 is about 604.3485244208.

Adding to 220730526 its reverse (625037022), we get a palindrome (845767548).

The spelling of 220730526 in words is "two hundred twenty million, seven hundred thirty thousand, five hundred twenty-six".