406312195990 has 16 divisors (see below), whose sum is σ = 731382730848. Its totient is φ = 162520261056.

The previous prime is 406312195981. The next prime is 406312196041. The reversal of 406312195990 is 99591213604.

It is a super-2 number, since 2×406312195990² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195567 + ... + 922426.

It is an arithmetic number, because the mean of its divisors is an integer number (45711420678).

Almost surely, 2^406312195990 is an apocalyptic number.

406312195990 is a deficient number, since it is larger than the sum of its proper divisors (325070534858).

406312195990 is a wasteful number, since it uses less digits than its factorization.

406312195990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1154343.

The product of its (nonzero) digits is 524880, while the sum is 49.

The spelling of 406312195990 in words is "four hundred six billion, three hundred twelve million, one hundred ninety-five thousand, nine hundred ninety".