20494266 has 16 divisors (see below), whose sum is σ = 44141664. Its totient is φ = 6305904.

The previous prime is 20494237. The next prime is 20494283. The reversal of 20494266 is 66249402.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131296 + ... + 131451.

It is an arithmetic number, because the mean of its divisors is an integer number (2758854).

Almost surely, 2^20494266 is an apocalyptic number.

20494266 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

20494266 is an abundant number, since it is smaller than the sum of its proper divisors (23647398).

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

20494266 is a wasteful number, since it uses less digits than its factorization.

20494266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262765.

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 20494266 is about 4527.0593104133. The cubic root of 20494266 is about 273.6596641109.

The spelling of 20494266 in words is "twenty million, four hundred ninety-four thousand, two hundred sixty-six".