258849630 has 48 divisors (see below), whose sum is σ = 724782240. Its totient is φ = 63716544.

The previous prime is 258849611. The next prime is 258849631. The reversal of 258849630 is 36948852.

258849630 is a `hidden beast` number, since 2 + 5 + 8 + 8 + 4 + 9 + 630 = 666.

It is a super-2 number, since 2×258849630² = 134006261902273800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258849631) 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, 109450 + ... + 111789.

It is an arithmetic number, because the mean of its divisors is an integer number (15099630).

Almost surely, 2^258849630 is an apocalyptic number.

258849630 is an abundant number, since it is smaller than the sum of its proper divisors (465932610).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

258849630 is a wasteful number, since it uses less digits than its factorization.

258849630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221265 (or 221262 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The square root of 258849630 is about 16088.8044925656. The cubic root of 258849630 is about 637.3077251746.

The spelling of 258849630 in words is "two hundred fifty-eight million, eight hundred forty-nine thousand, six hundred thirty".