220372240 has 40 divisors (see below), whose sum is σ = 558946368. Its totient is φ = 80135040.

The previous prime is 220372169. The next prime is 220372249. The reversal of 220372240 is 42273022.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (220372249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124332 + ... + 126091.

Almost surely, 2^220372240 is an apocalyptic number.

220372240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220372240 is an abundant number, since it is smaller than the sum of its proper divisors (338574128).

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

220372240 is a wasteful number, since it uses less digits than its factorization.

220372240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250447 (or 250441 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 220372240 is about 14844.9398786253. The cubic root of 220372240 is about 604.0213579571.

The spelling of 220372240 in words is "two hundred twenty million, three hundred seventy-two thousand, two hundred forty".