406308330 has 48 divisors (see below), whose sum is σ = 1118547144. Its totient is φ = 101975040.

The previous prime is 406308277. The next prime is 406308349. The reversal of 406308330 is 33803604.

It can be written as a sum of positive squares in 4 ways, for example, as 297252081 + 109056249 = 17241^2 + 10443^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 406308294 and 406308303.

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, 131251 + ... + 134310.

Almost surely, 2^406308330 is an apocalyptic number.

406308330 is an abundant number, since it is smaller than the sum of its proper divisors (712238814).

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

406308330 is a wasteful number, since it uses less digits than its factorization.

406308330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265591 (or 265588 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 406308330 is about 20157.0913080236. The cubic root of 406308330 is about 740.6594620507.

The spelling of 406308330 in words is "four hundred six million, three hundred eight thousand, three hundred thirty".