258740343 has 6 divisors (see below), whose sum is σ = 373736064. Its totient is φ = 172493556.

The previous prime is 258740267. The next prime is 258740351. The reversal of 258740343 is 343047852.

It is a happy number.

258740343 is a `hidden beast` number, since 2 + 587 + 40 + 34 + 3 = 666.

It is not a de Polignac number, because 258740343 - 2¹⁷ = 258609271 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 258740298 and 258740307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258740393) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14374455 + ... + 14374472.

It is an arithmetic number, because the mean of its divisors is an integer number (62289344).

Almost surely, 2^258740343 is an apocalyptic number.

258740343 is a deficient number, since it is larger than the sum of its proper divisors (114995721).

258740343 is a wasteful number, since it uses less digits than its factorization.

258740343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28748933 (or 28748930 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

The square root of 258740343 is about 16085.4077660468. The cubic root of 258740343 is about 637.2180215454.

The spelling of 258740343 in words is "two hundred fifty-eight million, seven hundred forty thousand, three hundred forty-three".