200820740 has 24 divisors (see below), whose sum is σ = 422452800. Its totient is φ = 80189408.

The previous prime is 200820713. The next prime is 200820787. The reversal of 200820740 is 47028002.

It is a super-2 number, since 2×200820740² = 80657939228295200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3599 + ... + 20361.

It is an arithmetic number, because the mean of its divisors is an integer number (17602200).

Almost surely, 2^200820740 is an apocalyptic number.

200820740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200820740 is an abundant number, since it is smaller than the sum of its proper divisors (221632060).

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

200820740 is a wasteful number, since it uses less digits than its factorization.

200820740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17371 (or 17369 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 200820740 is about 14171.1234558168. The cubic root of 200820740 is about 585.6024086479.

Adding to 200820740 its reverse (47028002), we get a palindrome (247848742).

The spelling of 200820740 in words is "two hundred million, eight hundred twenty thousand, seven hundred forty".