258023668 has 24 divisors (see below), whose sum is σ = 516720512. Its totient is φ = 110437344.

The previous prime is 258023659. The next prime is 258023669. The reversal of 258023668 is 866320852.

It is a self number, because there is not a number n which added to its sum of digits gives 258023668.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258023669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17446 + ... + 28642.

Almost surely, 2^258023668 is an apocalyptic number.

258023668 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

258023668 is an abundant number, since it is smaller than the sum of its proper divisors (258696844).

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

258023668 is a wasteful number, since it uses less digits than its factorization.

258023668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12031 (or 12029 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 258023668 is about 16063.1151399721. The cubic root of 258023668 is about 636.6291422136.

The spelling of 258023668 in words is "two hundred fifty-eight million, twenty-three thousand, six hundred sixty-eight".