220612734 has 40 divisors (see below), whose sum is σ = 515837520. Its totient is φ = 70339104.

The previous prime is 220612727. The next prime is 220612739. The reversal of 220612734 is 437216022.

220612734 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 220612698 and 220612707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220612739) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 25879 + ... + 33330.

It is an arithmetic number, because the mean of its divisors is an integer number (12895938).

Almost surely, 2^220612734 is an apocalyptic number.

220612734 is an abundant number, since it is smaller than the sum of its proper divisors (295224786).

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

220612734 is a wasteful number, since it uses less digits than its factorization.

220612734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59246 (or 59237 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 220612734 is about 14853.0378710889. The cubic root of 220612734 is about 604.2410025337.

Adding to 220612734 its reverse (437216022), we get a palindrome (657828756).

The spelling of 220612734 in words is "two hundred twenty million, six hundred twelve thousand, seven hundred thirty-four".