220440378 has 32 divisors (see below), whose sum is σ = 448620480. Its totient is φ = 72201600.

The previous prime is 220440347. The next prime is 220440379. The reversal of 220440378 is 873044022.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (220440379) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82926 + ... + 85542.

It is an arithmetic number, because the mean of its divisors is an integer number (14019390).

Almost surely, 2^220440378 is an apocalyptic number.

220440378 is an abundant number, since it is smaller than the sum of its proper divisors (228180102).

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

220440378 is a wasteful number, since it uses less digits than its factorization.

220440378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2862.

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 220440378 is about 14847.2346920226. The cubic root of 220440378 is about 604.0836050081.

The spelling of 220440378 in words is "two hundred twenty million, four hundred forty thousand, three hundred seventy-eight".