240231424 has 44 divisors (see below), whose sum is σ = 482273200. Its totient is φ = 119605248.

The previous prime is 240231391. The next prime is 240231427. The reversal of 240231424 is 424132042.

It is a happy number.

It is a super-2 number, since 2×240231424² = 115422274154135552, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 240231395 and 240231404.

It is not an unprimeable number, because it can be changed into a prime (240231427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 387787 + ... + 388405.

Almost surely, 2^240231424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 240231424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (241136600).

240231424 is an abundant number, since it is smaller than the sum of its proper divisors (242041776).

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

240231424 is an equidigital number, since it uses as much as digits as its factorization.

240231424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1018 (or 1000 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 240231424 is about 15499.4007626101. The cubic root of 240231424 is about 621.6461837375.

Adding to 240231424 its reverse (424132042), we get a palindrome (664363466).

The spelling of 240231424 in words is "two hundred forty million, two hundred thirty-one thousand, four hundred twenty-four".