258308745 has 32 divisors (see below), whose sum is σ = 435283200. Its totient is φ = 130546944.

The previous prime is 258308741. The next prime is 258308747. The reversal of 258308745 is 547803852.

It is not a de Polignac number, because 258308745 - 2² = 258308741 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 258308697 and 258308706.

It is not an unprimeable number, because it can be changed into a prime (258308741) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34171 + ... + 41039.

It is an arithmetic number, because the mean of its divisors is an integer number (13602600).

Almost surely, 2^258308745 is an apocalyptic number.

It is an amenable number.

258308745 is a deficient number, since it is larger than the sum of its proper divisors (176974455).

258308745 is a wasteful number, since it uses less digits than its factorization.

258308745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7009.

The product of its (nonzero) digits is 268800, while the sum is 42.

The square root of 258308745 is about 16071.9863427020. The cubic root of 258308745 is about 636.8635154520.

The spelling of 258308745 in words is "two hundred fifty-eight million, three hundred eight thousand, seven hundred forty-five".