258742843 has 8 divisors (see below), whose sum is σ = 267940800. Its totient is φ = 249563328.

The previous prime is 258742837. The next prime is 258742903. The reversal of 258742843 is 348247852.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 258742843 - 2⁹ = 258742331 is a prime.

It is a super-3 number, since 3×258742843³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 258742843.

It is not an unprimeable number, because it can be changed into a prime (258742823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27943 + ... + 36031.

It is an arithmetic number, because the mean of its divisors is an integer number (33492600).

Almost surely, 2^258742843 is an apocalyptic number.

258742843 is a deficient number, since it is larger than the sum of its proper divisors (9197957).

258742843 is a wasteful number, since it uses less digits than its factorization.

258742843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9221.

The product of its digits is 430080, while the sum is 43.

The square root of 258742843 is about 16085.4854760433. The cubic root of 258742843 is about 637.2200738473.

The spelling of 258742843 in words is "two hundred fifty-eight million, seven hundred forty-two thousand, eight hundred forty-three".