220510040 has 32 divisors (see below), whose sum is σ = 496622880. Its totient is φ = 88119552.

The previous prime is 220510021. The next prime is 220510061. The reversal of 220510040 is 40015022.

220510040 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 220509997 and 220510024.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55397 + ... + 59243.

It is an arithmetic number, because the mean of its divisors is an integer number (15519465).

Almost surely, 2^220510040 is an apocalyptic number.

220510040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220510040 is an abundant number, since it is smaller than the sum of its proper divisors (276112840).

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

220510040 is a wasteful number, since it uses less digits than its factorization.

220510040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5291 (or 5287 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 220510040 is about 14849.5804654542. The cubic root of 220510040 is about 604.1472310408.

Adding to 220510040 its reverse (40015022), we get a palindrome (260525062).

The spelling of 220510040 in words is "two hundred twenty million, five hundred ten thousand, forty".