220244340 has 24 divisors (see below), whose sum is σ = 616684320. Its totient is φ = 58731808.

The previous prime is 220244327. The next prime is 220244341. The reversal of 220244340 is 43442022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220244341) 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, 1835310 + ... + 1835429.

It is an arithmetic number, because the mean of its divisors is an integer number (25695180).

Almost surely, 2^220244340 is an apocalyptic number.

220244340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220244340 is an abundant number, since it is smaller than the sum of its proper divisors (396439980).

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

220244340 is a wasteful number, since it uses less digits than its factorization.

220244340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3670751 (or 3670749 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 220244340 is about 14840.6313881856. The cubic root of 220244340 is about 603.9044810429.

Adding to 220244340 its reverse (43442022), we get a palindrome (263686362).

The spelling of 220244340 in words is "two hundred twenty million, two hundred forty-four thousand, three hundred forty".