220000436 has 12 divisors (see below), whose sum is σ = 385681380. Its totient is φ = 109805760.

The previous prime is 220000423. The next prime is 220000457. The reversal of 220000436 is 634000022.

220000436 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 116856100 + 103144336 = 10810^2 + 10156^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46055 + ... + 50606.

It is an arithmetic number, because the mean of its divisors is an integer number (32140115).

Almost surely, 2^220000436 is an apocalyptic number.

It is an amenable number.

220000436 is a deficient number, since it is larger than the sum of its proper divisors (165680944).

220000436 is a wasteful number, since it uses less digits than its factorization.

220000436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97234 (or 97232 counting only the distinct ones).

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

The square root of 220000436 is about 14832.4116717410. The cubic root of 220000436 is about 603.6814724749.

Adding to 220000436 its reverse (634000022), we get a palindrome (854000458).

The spelling of 220000436 in words is "two hundred twenty million, four hundred thirty-six", and thus it is an aban number.