258993674 has 24 divisors (see below), whose sum is σ = 434152548. Its totient is φ = 115459200.

The previous prime is 258993671. The next prime is 258993677. The reversal of 258993674 is 476399852.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (258993671) and next prime (258993677).

It can be written as a sum of positive squares in 2 ways, for example, as 258984649 + 9025 = 16093^2 + 95^2 .

It is not an unprimeable number, because it can be changed into a prime (258993671) 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, 1724 + ... + 22824.

Almost surely, 2^258993674 is an apocalyptic number.

258993674 is a deficient number, since it is larger than the sum of its proper divisors (175158874).

258993674 is a wasteful number, since it uses less digits than its factorization.

258993674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21158 (or 21139 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 53.

The square root of 258993674 is about 16093.2803989740. The cubic root of 258993674 is about 637.4259190606.

The spelling of 258993674 in words is "two hundred fifty-eight million, nine hundred ninety-three thousand, six hundred seventy-four".