123227240 has 32 divisors (see below), whose sum is σ = 277766280. Its totient is φ = 49201152.

The previous prime is 123227233. The next prime is 123227249. The reversal of 123227240 is 42722321.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 53904964 + 69322276 = 7342^2 + 8326^2 .

It is not an unprimeable number, because it can be changed into a prime (123227249) 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, 22184 + ... + 27176.

Almost surely, 2^123227240 is an apocalyptic number.

123227240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123227240 is an abundant number, since it is smaller than the sum of its proper divisors (154539040).

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

123227240 is a wasteful number, since it uses less digits than its factorization.

123227240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5621 (or 5617 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 123227240 is about 11100.7765494131. The cubic root of 123227240 is about 497.6250571536.

Adding to 123227240 its reverse (42722321), we get a palindrome (165949561).

The spelling of 123227240 in words is "one hundred twenty-three million, two hundred twenty-seven thousand, two hundred forty".