220508464 has 30 divisors (see below), whose sum is σ = 469609700. Its totient is φ = 100230240.

The previous prime is 220508423. The next prime is 220508503. The reversal of 220508464 is 464805022.

It is a super-3 number, since 3×220508464³ (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55014 + ... + 58885.

Almost surely, 2^220508464 is an apocalyptic number.

It is an amenable number.

220508464 is an abundant number, since it is smaller than the sum of its proper divisors (249101236).

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

220508464 is a wasteful number, since it uses less digits than its factorization.

220508464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113929 (or 113912 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 31.

The square root of 220508464 is about 14849.5273998872. The cubic root of 220508464 is about 604.1457917438.

The spelling of 220508464 in words is "two hundred twenty million, five hundred eight thousand, four hundred sixty-four".