220136040 has 96 divisors (see below), whose sum is σ = 717275520. Its totient is φ = 58552704.

The previous prime is 220136017. The next prime is 220136057. The reversal of 220136040 is 40631022.

It is a happy number.

It is a super-2 number, since 2×220136040² = 96919752213763200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 267069 + ... + 267891.

It is an arithmetic number, because the mean of its divisors is an integer number (7471620).

Almost surely, 2^220136040 is an apocalyptic number.

220136040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220136040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (358637760).

220136040 is an abundant number, since it is smaller than the sum of its proper divisors (497139480).

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

220136040 is a wasteful number, since it uses less digits than its factorization.

220136040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1583 (or 1576 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 220136040 is about 14836.9821729353. The cubic root of 220136040 is about 603.8054795153.

Adding to 220136040 its reverse (40631022), we get a palindrome (260767062).

The spelling of 220136040 in words is "two hundred twenty million, one hundred thirty-six thousand, forty".