258667389 has 12 divisors (see below), whose sum is σ = 379756572. Its totient is φ = 169617600.

The previous prime is 258667373. The next prime is 258667399. The reversal of 258667389 is 983766852.

It is a happy number.

258667389 is a `hidden beast` number, since 258 + 6 + 6 + 7 + 389 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 136188900 + 122478489 = 11670^2 + 11067^2 .

It is not a de Polignac number, because 258667389 - 2⁴ = 258667373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258667399) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 235032 + ... + 236129.

It is an arithmetic number, because the mean of its divisors is an integer number (31646381).

Almost surely, 2^258667389 is an apocalyptic number.

It is an amenable number.

258667389 is a deficient number, since it is larger than the sum of its proper divisors (121089183).

258667389 is a wasteful number, since it uses less digits than its factorization.

258667389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471228 (or 471225 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 54.

The square root of 258667389 is about 16083.1398986641. The cubic root of 258667389 is about 637.1581262685.

The spelling of 258667389 in words is "two hundred fifty-eight million, six hundred sixty-seven thousand, three hundred eighty-nine".