406535404490 has 64 divisors (see below), whose sum is σ = 754085376000. Its totient is φ = 157730436864.

The previous prime is 406535404489. The next prime is 406535404531. The reversal of 406535404490 is 94404535604.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26739911 + ... + 26755109.

It is an arithmetic number, because the mean of its divisors is an integer number (11782584000).

Almost surely, 2^406535404490 is an apocalyptic number.

406535404490 is a deficient number, since it is larger than the sum of its proper divisors (347549971510).

406535404490 is a wasteful number, since it uses less digits than its factorization.

406535404490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15831.

The product of its (nonzero) digits is 1036800, while the sum is 44.

The spelling of 406535404490 in words is "four hundred six billion, five hundred thirty-five million, four hundred four thousand, four hundred ninety".