220785952 has 12 divisors (see below), whose sum is σ = 434672406. Its totient is φ = 110392960.

The previous prime is 220785941. The next prime is 220785967. The reversal of 220785952 is 259587022.

It can be written as a sum of positive squares in only one way, i.e., 215384976 + 5400976 = 14676^2 + 2324^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3449749 + ... + 3449812.

Almost surely, 2^220785952 is an apocalyptic number.

It is an amenable number.

220785952 is a deficient number, since it is larger than the sum of its proper divisors (213886454).

220785952 is an equidigital number, since it uses as much as digits as its factorization.

220785952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6899571 (or 6899563 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 40.

The square root of 220785952 is about 14858.8677899765. The cubic root of 220785952 is about 604.3991046745.

The spelling of 220785952 in words is "two hundred twenty million, seven hundred eighty-five thousand, nine hundred fifty-two".