200440 has 16 divisors (see below), whose sum is σ = 451080. Its totient is φ = 80160.

The previous prime is 200437. The next prime is 200443. The reversal of 200440 is 44002.

It is an interprime number because it is at equal distance from previous prime (200437) and next prime (200443).

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200443) 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, 2466 + ... + 2545.

2²⁰⁰⁴⁴⁰ is an apocalyptic number.

200440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200440 is an abundant number, since it is smaller than the sum of its proper divisors (250640).

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

200440 is a wasteful number, since it uses less digits than its factorization.

200440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5022 (or 5018 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 10.

The square root of 200440 is about 447.7052601880. The cubic root of 200440 is about 58.5232089467.

Adding to 200440 its reverse (44002), we get a palindrome (244442).

The spelling of 200440 in words is "two hundred thousand, four hundred forty", and thus it is an iban number.