406163025 has 48 divisors (see below), whose sum is σ = 748077120. Its totient is φ = 216057600.

The previous prime is 406162987. The next prime is 406163027. The reversal of 406163025 is 520361604.

406163025 is a `hidden beast` number, since 4 + 0 + 6 + 1 + 630 + 25 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-406163025 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 406163025.

It is not an unprimeable number, because it can be changed into a prime (406163027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 460585 + ... + 461465.

It is an arithmetic number, because the mean of its divisors is an integer number (15584940).

Almost surely, 2^406163025 is an apocalyptic number.

406163025 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

406163025 is a deficient number, since it is larger than the sum of its proper divisors (341914095).

406163025 is a wasteful number, since it uses less digits than its factorization.

406163025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1583 (or 1572 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 406163025 is about 20153.4866710453. The cubic root of 406163025 is about 740.5711593612.

The spelling of 406163025 in words is "four hundred six million, one hundred sixty-three thousand, twenty-five".