220040208 has 60 divisors (see below), whose sum is σ = 617404060. Its totient is φ = 73156608.

The previous prime is 220040203. The next prime is 220040243. The reversal of 220040208 is 802040022.

It can be written as a sum of positive squares in 2 ways, for example, as 22581504 + 197458704 = 4752^2 + 14052^2 .

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

It is not an unprimeable number, because it can be changed into a prime (220040203) 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 11 ways as a sum of consecutive naturals, for example, 60588 + ... + 64116.

Almost surely, 2^220040208 is an apocalyptic number.

It is an amenable number.

220040208 is an abundant number, since it is smaller than the sum of its proper divisors (397363852).

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

220040208 is a wasteful number, since it uses less digits than its factorization.

220040208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3976 (or 3967 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 220040208 is about 14833.7523236705. The cubic root of 220040208 is about 603.7178484222.

The spelling of 220040208 in words is "two hundred twenty million, forty thousand, two hundred eight".