406005022 has 4 divisors (see below), whose sum is σ = 609007536. Its totient is φ = 203002510.

The previous prime is 406004987. The next prime is 406005031. The reversal of 406005022 is 220500604.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 101501254 + ... + 101501257.

It is an arithmetic number, because the mean of its divisors is an integer number (152251884).

Almost surely, 2^406005022 is an apocalyptic number.

406005022 is a deficient number, since it is larger than the sum of its proper divisors (203002514).

406005022 is a wasteful number, since it uses less digits than its factorization.

406005022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203002513.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 406005022 is about 20149.5662980621. The cubic root of 406005022 is about 740.4751161190.

Adding to 406005022 its reverse (220500604), we get a palindrome (626505626).

The spelling of 406005022 in words is "four hundred six million, five thousand, twenty-two".