220410240 has 64 divisors (see below), whose sum is σ = 702563760. Its totient is φ = 58775552.

The previous prime is 220410209. The next prime is 220410257. The reversal of 220410240 is 42014022.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 55479 + ... + 59318.

Almost surely, 2^220410240 is an apocalyptic number.

220410240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220410240 is an abundant number, since it is smaller than the sum of its proper divisors (482153520).

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

220410240 is a wasteful number, since it uses less digits than its factorization.

220410240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114819 (or 114807 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 220410240 is about 14846.2197208582. The cubic root of 220410240 is about 604.0560742057.

Adding to 220410240 its reverse (42014022), we get a palindrome (262424262).

The spelling of 220410240 in words is "two hundred twenty million, four hundred ten thousand, two hundred forty".