258195270 has 16 divisors (see below), whose sum is σ = 619668720. Its totient is φ = 68852064.

The previous prime is 258195247. The next prime is 258195271. The reversal of 258195270 is 72591852.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258195271) 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, 4303225 + ... + 4303284.

It is an arithmetic number, because the mean of its divisors is an integer number (38729295).

Almost surely, 2^258195270 is an apocalyptic number.

258195270 is an abundant number, since it is smaller than the sum of its proper divisors (361473450).

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

258195270 is a wasteful number, since it uses less digits than its factorization.

258195270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8606519.

The product of its (nonzero) digits is 50400, while the sum is 39.

The square root of 258195270 is about 16068.4557440969. The cubic root of 258195270 is about 636.7702437712.

The spelling of 258195270 in words is "two hundred fifty-eight million, one hundred ninety-five thousand, two hundred seventy".