20193258 has 8 divisors (see below), whose sum is σ = 40386528. Its totient is φ = 6731084.

The previous prime is 20193247. The next prime is 20193293. The reversal of 20193258 is 85239102.

It is a happy number.

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

20193258 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1682766 + ... + 1682777.

It is an arithmetic number, because the mean of its divisors is an integer number (5048316).

Almost surely, 2^20193258 is an apocalyptic number.

20193258 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20193258 is a wasteful number, since it uses less digits than its factorization.

20193258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3365548.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 20193258 is about 4493.6909105990. The cubic root of 20193258 is about 272.3132654398.

The spelling of 20193258 in words is "twenty million, one hundred ninety-three thousand, two hundred fifty-eight".