200424440 has 32 divisors (see below), whose sum is σ = 456030000. Its totient is φ = 79267584.

The previous prime is 200424437. The next prime is 200424491. The reversal of 200424440 is 44424002.

It is a super-2 number, since 2×200424440² = 80339912298627200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24590 + ... + 31709.

Almost surely, 2^200424440 is an apocalyptic number.

200424440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200424440 is an abundant number, since it is smaller than the sum of its proper divisors (255605560).

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

200424440 is a wasteful number, since it uses less digits than its factorization.

200424440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56399 (or 56395 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 200424440 is about 14157.1338907280. The cubic root of 200424440 is about 585.2169453724.

Adding to 200424440 its reverse (44424002), we get a palindrome (244848442).

The spelling of 200424440 in words is "two hundred million, four hundred twenty-four thousand, four hundred forty".