220654428 has 48 divisors (see below), whose sum is σ = 523461120. Its totient is φ = 72333504.

The previous prime is 220654411. The next prime is 220654451. The reversal of 220654428 is 824456022.

220654428 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 205878 + ... + 206946.

It is an arithmetic number, because the mean of its divisors is an integer number (10905440).

Almost surely, 2^220654428 is an apocalyptic number.

It is an amenable number.

220654428 is an abundant number, since it is smaller than the sum of its proper divisors (302806692).

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

220654428 is a wasteful number, since it uses less digits than its factorization.

220654428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1346 (or 1344 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 33.

The square root of 220654428 is about 14854.4413560389. The cubic root of 220654428 is about 604.2790656696.

The spelling of 220654428 in words is "two hundred twenty million, six hundred fifty-four thousand, four hundred twenty-eight".