220140340 has 36 divisors (see below), whose sum is σ = 537773796. Its totient is φ = 75476352.

The previous prime is 220140317. The next prime is 220140353. The reversal of 220140340 is 43041022.

220140340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 159112996 + 61027344 = 12614^2 + 7812^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 111337 + ... + 113296.

It is an arithmetic number, because the mean of its divisors is an integer number (14938161).

Almost surely, 2^220140340 is an apocalyptic number.

220140340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220140340 is an abundant number, since it is smaller than the sum of its proper divisors (317633456).

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

220140340 is a wasteful number, since it uses less digits than its factorization.

220140340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224656 (or 224647 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 220140340 is about 14837.1270804021. The cubic root of 220140340 is about 603.8094109428.

Adding to 220140340 its reverse (43041022), we get a palindrome (263181362).

The spelling of 220140340 in words is "two hundred twenty million, one hundred forty thousand, three hundred forty".