200475640 has 32 divisors (see below), whose sum is σ = 451856880. Its totient is φ = 80050432.

The previous prime is 200475629. The next prime is 200475643. The reversal of 200475640 is 46574002.

It is a junction number, because it is equal to n+sod(n) for n = 200475599 and 200475608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200475643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20619 + ... + 28741.

Almost surely, 2^200475640 is an apocalyptic number.

200475640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200475640 is an abundant number, since it is smaller than the sum of its proper divisors (251381240).

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

200475640 is a wasteful number, since it uses less digits than its factorization.

200475640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8751 (or 8747 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 200475640 is about 14158.9420508737. The cubic root of 200475640 is about 585.2667738872.

The spelling of 200475640 in words is "two hundred million, four hundred seventy-five thousand, six hundred forty".