406134879 has 36 divisors (see below), whose sum is σ = 596830104. Its totient is φ = 245600768.

The previous prime is 406134877. The next prime is 406134881. The reversal of 406134879 is 978431604.

It is an interprime number because it is at equal distance from previous prime (406134877) and next prime (406134881).

It is not a de Polignac number, because 406134879 - 2¹ = 406134877 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 406134879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406134877) 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 35 ways as a sum of consecutive naturals, for example, 728869 + ... + 729425.

It is an arithmetic number, because the mean of its divisors is an integer number (16578614).

Almost surely, 2^406134879 is an apocalyptic number.

406134879 is a deficient number, since it is larger than the sum of its proper divisors (190695225).

406134879 is a wasteful number, since it uses less digits than its factorization.

406134879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652 (or 606 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 406134879 is about 20152.7883678661. The cubic root of 406134879 is about 740.5540524394.

The spelling of 406134879 in words is "four hundred six million, one hundred thirty-four thousand, eight hundred seventy-nine".