258343612 has 6 divisors (see below), whose sum is σ = 452101328. Its totient is φ = 129171804.

The previous prime is 258343573. The next prime is 258343619. The reversal of 258343612 is 216343852.

258343612 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×258343612² = 133482843722413088, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258343619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32292948 + ... + 32292955.

Almost surely, 2^258343612 is an apocalyptic number.

It is an amenable number.

258343612 is a deficient number, since it is larger than the sum of its proper divisors (193757716).

258343612 is a wasteful number, since it uses less digits than its factorization.

258343612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64585907 (or 64585905 counting only the distinct ones).

The product of its digits is 34560, while the sum is 34.

The square root of 258343612 is about 16073.0710195656. The cubic root of 258343612 is about 636.8921691744.

The spelling of 258343612 in words is "two hundred fifty-eight million, three hundred forty-three thousand, six hundred twelve".