258142730 has 16 divisors (see below), whose sum is σ = 465164640. Its totient is φ = 103144272.

The previous prime is 258142727. The next prime is 258142757. The reversal of 258142730 is 37241852.

258142730 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4160 + ... + 23099.

It is an arithmetic number, because the mean of its divisors is an integer number (29072790).

Almost surely, 2^258142730 is an apocalyptic number.

258142730 is a deficient number, since it is larger than the sum of its proper divisors (207021910).

258142730 is a wasteful number, since it uses less digits than its factorization.

258142730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28213.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 258142730 is about 16066.8207807270. The cubic root of 258142730 is about 636.7270488434.

The spelling of 258142730 in words is "two hundred fifty-eight million, one hundred forty-two thousand, seven hundred thirty".