20258194 has 8 divisors (see below), whose sum is σ = 33149808. Its totient is φ = 9208260.

The previous prime is 20258191. The next prime is 20258201. The reversal of 20258194 is 49185202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (20258191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 460392 + ... + 460435.

It is an arithmetic number, because the mean of its divisors is an integer number (4143726).

Almost surely, 2^20258194 is an apocalyptic number.

20258194 is a deficient number, since it is larger than the sum of its proper divisors (12891614).

20258194 is a wasteful number, since it uses less digits than its factorization.

20258194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 920840.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 20258194 is about 4500.9103523621. The cubic root of 20258194 is about 272.6048481305.

The spelling of 20258194 in words is "twenty million, two hundred fifty-eight thousand, one hundred ninety-four".