243020424 has 32 divisors (see below), whose sum is σ = 610956000. Its totient is φ = 80552832.

The previous prime is 243020413. The next prime is 243020447. The reversal of 243020424 is 424020342.

It is a super-2 number, since 2×243020424² = 118117852962279552, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 243020424.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23989 + ... + 32580.

It is an arithmetic number, because the mean of its divisors is an integer number (19092375).

Almost surely, 2^243020424 is an apocalyptic number.

243020424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

243020424 is an abundant number, since it is smaller than the sum of its proper divisors (367935576).

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

243020424 is a wasteful number, since it uses less digits than its factorization.

243020424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56757 (or 56753 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 243020424 is about 15589.1123544607. The cubic root of 243020424 is about 624.0426294019.

Adding to 243020424 its reverse (424020342), we get a palindrome (667040766).

The spelling of 243020424 in words is "two hundred forty-three million, twenty thousand, four hundred twenty-four".