406129328 has 20 divisors (see below), whose sum is σ = 858410088. Its totient is φ = 184604160.

The previous prime is 406129259. The next prime is 406129343. The reversal of 406129328 is 823921604.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1153601 + ... + 1153952.

Almost surely, 2^406129328 is an apocalyptic number.

It is an amenable number.

406129328 is an abundant number, since it is smaller than the sum of its proper divisors (452280760).

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

406129328 is a wasteful number, since it uses less digits than its factorization.

406129328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2307572 (or 2307566 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 406129328 is about 20152.6506445182. The cubic root of 406129328 is about 740.5506784911.

The spelling of 406129328 in words is "four hundred six million, one hundred twenty-nine thousand, three hundred twenty-eight".