200280445 has 8 divisors (see below), whose sum is σ = 246832344. Its totient is φ = 155893824.

The previous prime is 200280439. The next prime is 200280469. The reversal of 200280445 is 544082002.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 82210489 + 118069956 = 9067^2 + 10866^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 200280445 - 2⁷ = 200280317 is a prime.

It is a super-2 number, since 2×200280445² = 80224513298796050, which contains 22 as substring.

It is a Duffinian number.

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, 541114 + ... + 541483.

It is an arithmetic number, because the mean of its divisors is an integer number (30854043).

Almost surely, 2^200280445 is an apocalyptic number.

It is an amenable number.

200280445 is a deficient number, since it is larger than the sum of its proper divisors (46551899).

200280445 is a wasteful number, since it uses less digits than its factorization.

200280445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1082639.

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 200280445 is about 14152.0473783831. The cubic root of 200280445 is about 585.0767620312.

The spelling of 200280445 in words is "two hundred million, two hundred eighty thousand, four hundred forty-five".