220254240 has 48 divisors (see below), whose sum is σ = 693802368. Its totient is φ = 58734336.

The previous prime is 220254197. The next prime is 220254247. The reversal of 220254240 is 42452022.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (220254247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 228952 + ... + 229911.

It is an arithmetic number, because the mean of its divisors is an integer number (14454216).

Almost surely, 2^220254240 is an apocalyptic number.

220254240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220254240 is an abundant number, since it is smaller than the sum of its proper divisors (473548128).

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

220254240 is a wasteful number, since it uses less digits than its factorization.

220254240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458881 (or 458873 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 220254240 is about 14840.9649281979. The cubic root of 220254240 is about 603.9135294249.

The spelling of 220254240 in words is "two hundred twenty million, two hundred fifty-four thousand, two hundred forty".