204252251406 has 48 divisors (see below), whose sum is σ = 503152016976. Its totient is φ = 54924973824.

The previous prime is 204252251347. The next prime is 204252251447. The reversal of 204252251406 is 604152252402.

It is a congruent number.

It is an unprimeable number.

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, 20428401 + ... + 20438396.

It is an arithmetic number, because the mean of its divisors is an integer number (10482333687).

Almost surely, 2^204252251406 is an apocalyptic number.

204252251406 is an abundant number, since it is smaller than the sum of its proper divisors (298899765570).

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

204252251406 is a wasteful number, since it uses less digits than its factorization.

204252251406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40866833 (or 40866826 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 33.

The spelling of 204252251406 in words is "two hundred four billion, two hundred fifty-two million, two hundred fifty-one thousand, four hundred six".