39926123406 has 48 divisors (see below), whose sum is σ = 93191336784. Its totient is φ = 12280954752.

The previous prime is 39926123401. The next prime is 39926123417. The reversal of 39926123406 is 60432162993.

39926123406 is a `hidden beast` number, since 39 + 92 + 6 + 123 + 406 = 666.

It is a super-2 number, since 2×39926123406² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39926123401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 735945 + ... + 788331.

It is an arithmetic number, because the mean of its divisors is an integer number (1941486183).

Almost surely, 2^39926123406 is an apocalyptic number.

39926123406 is an abundant number, since it is smaller than the sum of its proper divisors (53265213378).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39926123406 is a wasteful number, since it uses less digits than its factorization.

39926123406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55665 (or 55662 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 45.

The spelling of 39926123406 in words is "thirty-nine billion, nine hundred twenty-six million, one hundred twenty-three thousand, four hundred six".