258423739 has 8 divisors (see below), whose sum is σ = 296195328. Its totient is φ = 220865640.

The previous prime is 258423733. The next prime is 258423743. The reversal of 258423739 is 937324852.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-258423739 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 258423695 and 258423704.

It is not an unprimeable number, because it can be changed into a prime (258423733) 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, 50767 + ... + 55624.

It is an arithmetic number, because the mean of its divisors is an integer number (37024416).

Almost surely, 2^258423739 is an apocalyptic number.

258423739 is a deficient number, since it is larger than the sum of its proper divisors (37771589).

258423739 is a wasteful number, since it uses less digits than its factorization.

258423739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106745.

The product of its digits is 362880, while the sum is 43.

The square root of 258423739 is about 16075.5634115884. The cubic root of 258423739 is about 636.9580078241.

The spelling of 258423739 in words is "two hundred fifty-eight million, four hundred twenty-three thousand, seven hundred thirty-nine".