220660436 has 12 divisors (see below), whose sum is σ = 402945312. Its totient is φ = 105533208.

The previous prime is 220660421. The next prime is 220660439. The reversal of 220660436 is 634066022.

220660436 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 220660399 and 220660408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220660439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1199150 + ... + 1199333.

It is an arithmetic number, because the mean of its divisors is an integer number (33578776).

Almost surely, 2^220660436 is an apocalyptic number.

It is an amenable number.

220660436 is a deficient number, since it is larger than the sum of its proper divisors (182284876).

220660436 is a wasteful number, since it uses less digits than its factorization.

220660436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2398510 (or 2398508 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 220660436 is about 14854.6435837418. The cubic root of 220660436 is about 604.2845500760.

The spelling of 220660436 in words is "two hundred twenty million, six hundred sixty thousand, four hundred thirty-six".