200117400 has 384 divisors, whose sum is σ = 771379200. Its totient is φ = 41932800.

The previous prime is 200117389. The next prime is 200117459. The reversal of 200117400 is 4711002.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 200117400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3775774 + ... + 3775826.

It is an arithmetic number, because the mean of its divisors is an integer number (2008800).

Almost surely, 2^200117400 is an apocalyptic number.

200117400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200117400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (385689600).

200117400 is an abundant number, since it is smaller than the sum of its proper divisors (571261800).

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

200117400 is a wasteful number, since it uses less digits than its factorization.

200117400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139 (or 130 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 15.

The square root of 200117400 is about 14146.2857315975. The cubic root of 200117400 is about 584.9179518212.

Adding to 200117400 its reverse (4711002), we get a palindrome (204828402).

The spelling of 200117400 in words is "two hundred million, one hundred seventeen thousand, four hundred".