256042002 has 16 divisors (see below), whose sum is σ = 518567040. Its totient is φ = 84266832.

The previous prime is 256041997. The next prime is 256042013. The reversal of 256042002 is 200240652.

It is a self number, because there is not a number n which added to its sum of digits gives 256042002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 269613 + ... + 270560.

It is an arithmetic number, because the mean of its divisors is an integer number (32410440).

Almost surely, 2^256042002 is an apocalyptic number.

256042002 is an abundant number, since it is smaller than the sum of its proper divisors (262525038).

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

256042002 is a wasteful number, since it uses less digits than its factorization.

256042002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540257.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 256042002 is about 16001.3125086663. The cubic root of 256042002 is about 634.9951449398.

Adding to 256042002 its reverse (200240652), we get a palindrome (456282654).

The spelling of 256042002 in words is "two hundred fifty-six million, forty-two thousand, two".