406446825 has 12 divisors (see below), whose sum is σ = 671992208. Its totient is φ = 216771600.

The previous prime is 406446787. The next prime is 406446847. The reversal of 406446825 is 528644604.

It is not a de Polignac number, because 406446825 - 2⁸ = 406446569 is a prime.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2709571 + ... + 2709720.

Almost surely, 2^406446825 is an apocalyptic number.

It is an amenable number.

406446825 is a deficient number, since it is larger than the sum of its proper divisors (265545383).

406446825 is a wasteful number, since it uses less digits than its factorization.

406446825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5419304 (or 5419299 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 39.

The square root of 406446825 is about 20160.5264068179. The cubic root of 406446825 is about 740.7436066702.

The spelling of 406446825 in words is "four hundred six million, four hundred forty-six thousand, eight hundred twenty-five".