224232140 has 24 divisors (see below), whose sum is σ = 513695952. Its totient is φ = 81538880.

The previous prime is 224232121. The next prime is 224232149. The reversal of 224232140 is 41232422.

224232140 is digitally balanced in base 2, base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

224232140 is strictly pandigital in base 9.

It is not an unprimeable number, because it can be changed into a prime (224232149) 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, 509399 + ... + 509838.

It is an arithmetic number, because the mean of its divisors is an integer number (21403998).

Almost surely, 2^224232140 is an apocalyptic number.

224232140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

224232140 is an abundant number, since it is smaller than the sum of its proper divisors (289463812).

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

224232140 is a wasteful number, since it uses less digits than its factorization.

224232140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1019257 (or 1019255 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 224232140 is about 14974.3827919551. The cubic root of 224232140 is about 607.5275177067.

Adding to 224232140 its reverse (41232422), we get a palindrome (265464562).

The spelling of 224232140 in words is "two hundred twenty-four million, two hundred thirty-two thousand, one hundred forty".