220894544 has 20 divisors (see below), whose sum is σ = 460905396. Its totient is φ = 101951232.

The previous prime is 220894519. The next prime is 220894571. The reversal of 220894544 is 445498022.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 90478144 + 130416400 = 9512^2 + 11420^2 .

It is a junction number, because it is equal to n+sod(n) for n = 220894498 and 220894507.

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, 530789 + ... + 531204.

Almost surely, 2^220894544 is an apocalyptic number.

It is an amenable number.

220894544 is an abundant number, since it is smaller than the sum of its proper divisors (240010852).

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

220894544 is a wasteful number, since it uses less digits than its factorization.

220894544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1062014 (or 1062008 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 38.

The square root of 220894544 is about 14862.5214549887. The cubic root of 220894544 is about 604.4981782336.

The spelling of 220894544 in words is "two hundred twenty million, eight hundred ninety-four thousand, five hundred forty-four".