402254355508 has 12 divisors (see below), whose sum is σ = 703956731940. Its totient is φ = 201123860672.

The previous prime is 402254355499. The next prime is 402254355539. The reversal of 402254355508 is 805553452204.

It can be written as a sum of positive squares in 2 ways, for example, as 209579008804 + 192675346704 = 457798^2 + 438948^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 545641 + ... + 1049872.

It is an arithmetic number, because the mean of its divisors is an integer number (58663060995).

Almost surely, 2^402254355508 is an apocalyptic number.

It is an amenable number.

402254355508 is a deficient number, since it is larger than the sum of its proper divisors (301702376432).

402254355508 is a wasteful number, since it uses less digits than its factorization.

402254355508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1658546 (or 1658544 counting only the distinct ones).

The product of its (nonzero) digits is 960000, while the sum is 43.

The spelling of 402254355508 in words is "four hundred two billion, two hundred fifty-four million, three hundred fifty-five thousand, five hundred eight".