402838723068 has 48 divisors (see below), whose sum is σ = 941896381440. Its totient is φ = 134002814400.

The previous prime is 402838723061. The next prime is 402838723081. The reversal of 402838723068 is 860327838204.

It is a happy number.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 402838723068.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402838723061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11669073 + ... + 11703543.

It is an arithmetic number, because the mean of its divisors is an integer number (19622841280).

Almost surely, 2^402838723068 is an apocalyptic number.

It is an amenable number.

402838723068 is an abundant number, since it is smaller than the sum of its proper divisors (539057658372).

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

402838723068 is a wasteful number, since it uses less digits than its factorization.

402838723068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36458 (or 36456 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 51.

The spelling of 402838723068 in words is "four hundred two billion, eight hundred thirty-eight million, seven hundred twenty-three thousand, sixty-eight".