220422140 has 24 divisors (see below), whose sum is σ = 467217072. Its totient is φ = 87344000.

The previous prime is 220422101. The next prime is 220422149. The reversal of 220422140 is 41224022.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220422149) 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, 49361 + ... + 53640.

It is an arithmetic number, because the mean of its divisors is an integer number (19467378).

Almost surely, 2^220422140 is an apocalyptic number.

220422140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220422140 is an abundant number, since it is smaller than the sum of its proper divisors (246794932).

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

220422140 is a wasteful number, since it uses less digits than its factorization.

220422140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103117 (or 103115 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 220422140 is about 14846.6204908727. The cubic root of 220422140 is about 604.0669450526.

Adding to 220422140 its reverse (41224022), we get a palindrome (261646162).

The spelling of 220422140 in words is "two hundred twenty million, four hundred twenty-two thousand, one hundred forty".