403857824852 has 12 divisors (see below), whose sum is σ = 706766123700. Its totient is φ = 201924646656.

The previous prime is 403857824807. The next prime is 403857824873. The reversal of 403857824852 is 258428758304.

It can be written as a sum of positive squares in 2 ways, for example, as 274087849156 + 129769975696 = 523534^2 + 360236^2 .

It is a super-2 number, since 2×403857824852² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

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, 848477 + ... + 1235972.

It is an arithmetic number, because the mean of its divisors is an integer number (58897176975).

Almost surely, 2^403857824852 is an apocalyptic number.

It is an amenable number.

403857824852 is a deficient number, since it is larger than the sum of its proper divisors (302908298848).

403857824852 is a wasteful number, since it uses less digits than its factorization.

403857824852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2132890 (or 2132888 counting only the distinct ones).

The product of its (nonzero) digits is 17203200, while the sum is 56.

The spelling of 403857824852 in words is "four hundred three billion, eight hundred fifty-seven million, eight hundred twenty-four thousand, eight hundred fifty-two".