206401530 has 16 divisors (see below), whose sum is σ = 495363744. Its totient is φ = 55040400.

The previous prime is 206401519. The next prime is 206401537. The reversal of 206401530 is 35104602.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 206401497 and 206401506.

It is not an unprimeable number, because it can be changed into a prime (206401537) 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, 3439996 + ... + 3440055.

It is an arithmetic number, because the mean of its divisors is an integer number (30960234).

Almost surely, 2^206401530 is an apocalyptic number.

206401530 is an abundant number, since it is smaller than the sum of its proper divisors (288962214).

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

206401530 is a wasteful number, since it uses less digits than its factorization.

206401530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6880061.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 206401530 is about 14366.6812451589. The cubic root of 206401530 is about 590.9775329940.

The spelling of 206401530 in words is "two hundred six million, four hundred one thousand, five hundred thirty".