20412258 has 16 divisors (see below), whose sum is σ = 40979520. Its totient is φ = 6778256.

The previous prime is 20412253. The next prime is 20412263. The reversal of 20412258 is 85221402.

It is an interprime number because it is at equal distance from previous prime (20412253) and next prime (20412263).

It is not an unprimeable number, because it can be changed into a prime (20412253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4710 + ... + 7937.

It is an arithmetic number, because the mean of its divisors is an integer number (2561220).

Almost surely, 2^20412258 is an apocalyptic number.

20412258 is an abundant number, since it is smaller than the sum of its proper divisors (20567262).

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

20412258 is a wasteful number, since it uses less digits than its factorization.

20412258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12921.

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 20412258 is about 4517.9926958772. The cubic root of 20412258 is about 273.2941589042.

The spelling of 20412258 in words is "twenty million, four hundred twelve thousand, two hundred fifty-eight".