224161240 has 32 divisors (see below), whose sum is σ = 530910000. Its totient is φ = 84945024.

The previous prime is 224161219. The next prime is 224161241. The reversal of 224161240 is 42161422.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224161241) 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, 146715 + ... + 148234.

Almost surely, 2^224161240 is an apocalyptic number.

224161240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

224161240 is an abundant number, since it is smaller than the sum of its proper divisors (306748760).

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

224161240 is a wasteful number, since it uses less digits than its factorization.

224161240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294979 (or 294975 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 224161240 is about 14972.0152284187. The cubic root of 224161240 is about 607.4634795457.

The spelling of 224161240 in words is "two hundred twenty-four million, one hundred sixty-one thousand, two hundred forty".