220068740 has 24 divisors (see below), whose sum is σ = 489330072. Its totient is φ = 82849280.

The previous prime is 220068731. The next prime is 220068749. The reversal of 220068740 is 47860022.

It is an interprime number because it is at equal distance from previous prime (220068731) and next prime (220068749).

It can be written as a sum of positive squares in 4 ways, for example, as 8773444 + 211295296 = 2962^2 + 14536^2 .

It is not an unprimeable number, because it can be changed into a prime (220068749) 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, 323291 + ... + 323970.

It is an arithmetic number, because the mean of its divisors is an integer number (20388753).

Almost surely, 2^220068740 is an apocalyptic number.

220068740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220068740 is an abundant number, since it is smaller than the sum of its proper divisors (269261332).

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

220068740 is a wasteful number, since it uses less digits than its factorization.

220068740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647287 (or 647285 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 220068740 is about 14834.7140181400. The cubic root of 220068740 is about 603.7439414309.

The spelling of 220068740 in words is "two hundred twenty million, sixty-eight thousand, seven hundred forty".