324212440 has 32 divisors (see below), whose sum is σ = 772390080. Its totient is φ = 122056192.

The previous prime is 324212419. The next prime is 324212443. The reversal of 324212440 is 44212423.

It is a happy number.

It is a super-2 number, since 2×324212440² = 210227412501507200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (324212443) 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, 237712 + ... + 239071.

It is an arithmetic number, because the mean of its divisors is an integer number (24137190).

Almost surely, 2^324212440 is an apocalyptic number.

It is an amenable number.

324212440 is an abundant number, since it is smaller than the sum of its proper divisors (448177640).

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

324212440 is a wasteful number, since it uses less digits than its factorization.

324212440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476811 (or 476807 counting only the distinct ones).

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

The square root of 324212440 is about 18005.9001441194. The cubic root of 324212440 is about 686.9786257561.

Adding to 324212440 its reverse (44212423), we get a palindrome (368424863).

The spelling of 324212440 in words is "three hundred twenty-four million, two hundred twelve thousand, four hundred forty".