20484258 has 8 divisors (see below), whose sum is σ = 40968528. Its totient is φ = 6828084.

The previous prime is 20484251. The next prime is 20484259. The reversal of 20484258 is 85248402.

It is a happy number.

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

20484258 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (20484251) 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, 1707016 + ... + 1707027.

It is an arithmetic number, because the mean of its divisors is an integer number (5121066).

Almost surely, 2^20484258 is an apocalyptic number.

20484258 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.

20484258 is a wasteful number, since it uses less digits than its factorization.

20484258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3414048.

The product of its (nonzero) digits is 20480, while the sum is 33.

The square root of 20484258 is about 4525.9538221241. The cubic root of 20484258 is about 273.6151112939.

The spelling of 20484258 in words is "twenty million, four hundred eighty-four thousand, two hundred fifty-eight".