200720034 has 48 divisors (see below), whose sum is σ = 457389504. Its totient is φ = 63492000.

The previous prime is 200719949. The next prime is 200720041. The reversal of 200720034 is 430027002.

It is a happy number.

200720034 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×200720034² = 80577064097922312, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 200719989 and 200720016.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52384 + ... + 56084.

It is an arithmetic number, because the mean of its divisors is an integer number (9528948).

Almost surely, 2^200720034 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200720034, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (228694752).

200720034 is an abundant number, since it is smaller than the sum of its proper divisors (256669470).

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

200720034 is a wasteful number, since it uses less digits than its factorization.

200720034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3863 (or 3860 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 200720034 is about 14167.5697986634. The cubic root of 200720034 is about 585.5045045224.

Adding to 200720034 its reverse (430027002), we get a palindrome (630747036).

The spelling of 200720034 in words is "two hundred million, seven hundred twenty thousand, thirty-four".