20412259 has 16 divisors (see below), whose sum is σ = 24304320. Its totient is φ = 16773120.

The previous prime is 20412253. The next prime is 20412263. The reversal of 20412259 is 95221402.

It is not a de Polignac number, because 20412259 - 2¹⁹ = 19887971 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 38919 + ... + 39439.

It is an arithmetic number, because the mean of its divisors is an integer number (1519020).

Almost surely, 2^20412259 is an apocalyptic number.

20412259 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

20412259 is a deficient number, since it is larger than the sum of its proper divisors (3892061).

20412259 is a wasteful number, since it uses less digits than its factorization.

20412259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 20412259 is about 4517.9928065458. The cubic root of 20412259 is about 273.2941633671.

The spelling of 20412259 in words is "twenty million, four hundred twelve thousand, two hundred fifty-nine".