20297258 has 8 divisors (see below), whose sum is σ = 30730752. Its totient is φ = 10053676.

The previous prime is 20297243. The next prime is 20297273. The reversal of 20297258 is 85279202.

It is an interprime number because it is at equal distance from previous prime (20297243) and next prime (20297273).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47210 + ... + 47637.

It is an arithmetic number, because the mean of its divisors is an integer number (3841344).

Almost surely, 2^20297258 is an apocalyptic number.

20297258 is a deficient number, since it is larger than the sum of its proper divisors (10433494).

20297258 is a wasteful number, since it uses less digits than its factorization.

20297258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94956.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 20297258 is about 4505.2478289213. The cubic root of 20297258 is about 272.7799574919.

The spelling of 20297258 in words is "twenty million, two hundred ninety-seven thousand, two hundred fifty-eight".