220428464 has 40 divisors (see below), whose sum is σ = 443586192. Its totient is φ = 106030080.

The previous prime is 220428463. The next prime is 220428473. The reversal of 220428464 is 464824022.

It is a self number, because there is not a number n which added to its sum of digits gives 220428464.

It is not an unprimeable number, because it can be changed into a prime (220428463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45587 + ... + 50189.

Almost surely, 2^220428464 is an apocalyptic number.

It is an amenable number.

220428464 is an abundant number, since it is smaller than the sum of its proper divisors (223157728).

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

220428464 is a wasteful number, since it uses less digits than its factorization.

220428464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4725 (or 4719 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 32.

The square root of 220428464 is about 14846.8334671067. The cubic root of 220428464 is about 604.0727219721.

The spelling of 220428464 in words is "two hundred twenty million, four hundred twenty-eight thousand, four hundred sixty-four".