200978249 has 8 divisors (see below), whose sum is σ = 204882720. Its totient is φ = 197090496.

The previous prime is 200978213. The next prime is 200978263. The reversal of 200978249 is 942879002.

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 200978249 - 2¹⁶ = 200912713 is a prime.

It is a super-2 number, since 2×200978249² = 80784513142212002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200971249) 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, 21614 + ... + 29480.

It is an arithmetic number, because the mean of its divisors is an integer number (25610340).

Almost surely, 2^200978249 is an apocalyptic number.

It is an amenable number.

200978249 is a deficient number, since it is larger than the sum of its proper divisors (3904471).

200978249 is an equidigital number, since it uses as much as digits as its factorization.

200978249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8359.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 200978249 is about 14176.6797593795. The cubic root of 200978249 is about 585.7554697734.

The spelling of 200978249 in words is "two hundred million, nine hundred seventy-eight thousand, two hundred forty-nine".