258796845 has 24 divisors (see below), whose sum is σ = 453030552. Its totient is φ = 136656000.

The previous prime is 258796843. The next prime is 258796849. The reversal of 258796845 is 548697852.

It can be written as a sum of positive squares in 4 ways, for example, as 87553449 + 171243396 = 9357^2 + 13086^2 .

It is not a de Polignac number, because 258796845 - 2¹ = 258796843 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 258796791 and 258796800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258796843) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23926 + ... + 33015.

It is an arithmetic number, because the mean of its divisors is an integer number (18876273).

Almost surely, 2^258796845 is an apocalyptic number.

It is an amenable number.

258796845 is a deficient number, since it is larger than the sum of its proper divisors (194233707).

258796845 is a wasteful number, since it uses less digits than its factorization.

258796845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57053 (or 57050 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 54.

The square root of 258796845 is about 16087.1639825048. The cubic root of 258796845 is about 637.2644019845.

The spelling of 258796845 in words is "two hundred fifty-eight million, seven hundred ninety-six thousand, eight hundred forty-five".