258387274 has 32 divisors (see below), whose sum is σ = 408320640. Its totient is φ = 122472000.

The previous prime is 258387271. The next prime is 258387293. The reversal of 258387274 is 472783852.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (258387271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1427464 + ... + 1427644.

It is an arithmetic number, because the mean of its divisors is an integer number (12760020).

Almost surely, 2^258387274 is an apocalyptic number.

258387274 is a deficient number, since it is larger than the sum of its proper divisors (149933366).

258387274 is a wasteful number, since it uses less digits than its factorization.

258387274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526.

The product of its digits is 752640, while the sum is 46.

The square root of 258387274 is about 16074.4291967087. The cubic root of 258387274 is about 636.9280469977.

The spelling of 258387274 in words is "two hundred fifty-eight million, three hundred eighty-seven thousand, two hundred seventy-four".