258378093 has 20 divisors (see below), whose sum is σ = 406288960. Its totient is φ = 163185192.

The previous prime is 258378091. The next prime is 258378101. The reversal of 258378093 is 390873852.

It is not a de Polignac number, because 258378093 - 2¹ = 258378091 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258378091) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 82405 + ... + 85482.

It is an arithmetic number, because the mean of its divisors is an integer number (20314448).

Almost surely, 2^258378093 is an apocalyptic number.

It is an amenable number.

258378093 is a deficient number, since it is larger than the sum of its proper divisors (147910867).

258378093 is a wasteful number, since it uses less digits than its factorization.

258378093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167918 (or 167909 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 258378093 is about 16074.1436163797. The cubic root of 258378093 is about 636.9205031463.

It can be divided in two parts, 25837 and 8093, that added together give a triangular number (33930 = T₂₆₀).

The spelling of 258378093 in words is "two hundred fifty-eight million, three hundred seventy-eight thousand, ninety-three".