200000040 has 64 divisors (see below), whose sum is σ = 612783360. Its totient is φ = 52197120.

The previous prime is 200000039. The next prime is 200000051. The reversal of 200000040 is 40000002.

200000040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (6).

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

It is a junction number, because it is equal to n+sod(n) for n = 199999974 and 200000028.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12091 + ... + 23370.

It is an arithmetic number, because the mean of its divisors is an integer number (9574740).

Almost surely, 2^200000040 is an apocalyptic number.

200000040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200000040 is an abundant number, since it is smaller than the sum of its proper divisors (412783320).

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

200000040 is a wasteful number, since it uses less digits than its factorization.

200000040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35522 (or 35518 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 6.

The square root of 200000040 is about 14142.1370379444. The cubic root of 200000040 is about 584.8035866295.

Adding to 200000040 its reverse (40000002), we get a palindrome (240000042).

The spelling of 200000040 in words is "two hundred million, forty", and thus it is an aban number.