406434505243626 has 64 divisors (see below), whose sum is σ = 922639940812800. Its totient is φ = 132561816895728.

The previous prime is 406434505243553. The next prime is 406434505243693. The reversal of 406434505243626 is 626342505434604.

406434505243626 is a `hidden beast` number, since 4 + 0 + 6 + 4 + 3 + 4 + 5 + 0 + 5 + 2 + 4 + 3 + 626 = 666.

It is a super-2 number, since 2×406434505243626² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 10484770 + ... + 30377613.

It is an arithmetic number, because the mean of its divisors is an integer number (14416249075200).

Almost surely, 2^{406434505243626} is an apocalyptic number.

406434505243626 is an abundant number, since it is smaller than the sum of its proper divisors (516205435569174).

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

406434505243626 is a wasteful number, since it uses less digits than its factorization.

406434505243626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40866360 (or 40866354 counting only the distinct ones).

The product of its (nonzero) digits is 49766400, while the sum is 54.

It can be divided in two parts, 40643450 and 5243626, that added together give a square (45887076 = 6774²).

The spelling of 406434505243626 in words is "four hundred six trillion, four hundred thirty-four billion, five hundred five million, two hundred forty-three thousand, six hundred twenty-six".