406202506404 has 12 divisors (see below), whose sum is σ = 947805848304. Its totient is φ = 135400835464.

The previous prime is 406202506399. The next prime is 406202506433. The reversal of 406202506404 is 404605202604.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×406202506404² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16925104422 + ... + 16925104445.

It is an arithmetic number, because the mean of its divisors is an integer number (78983820692).

Almost surely, 2^406202506404 is an apocalyptic number.

It is an amenable number.

406202506404 is an abundant number, since it is smaller than the sum of its proper divisors (541603341900).

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

406202506404 is a wasteful number, since it uses less digits than its factorization.

406202506404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33850208874 (or 33850208872 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 33.

The spelling of 406202506404 in words is "four hundred six billion, two hundred two million, five hundred six thousand, four hundred four".