200240400 has 60 divisors (see below), whose sum is σ = 641440592. Its totient is φ = 53397120.

The previous prime is 200240371. The next prime is 200240401. The reversal of 200240400 is 4042002.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is not an unprimeable number, because it can be changed into a prime (200240401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 82234 + ... + 84633.

Almost surely, 2^200240400 is an apocalyptic number.

200240400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200240400 is an abundant number, since it is smaller than the sum of its proper divisors (441200192).

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

200240400 is a wasteful number, since it uses less digits than its factorization.

200240400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166888 (or 166877 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 12.

The square root of 200240400 is about 14150.6324946979. The cubic root of 200240400 is about 585.0377651126.

Adding to 200240400 its reverse (4042002), we get a palindrome (204282402).

The spelling of 200240400 in words is "two hundred million, two hundred forty thousand, four hundred".