20446260 has 48 divisors (see below), whose sum is σ = 57454656. Its totient is φ = 5432832.

The previous prime is 20446253. The next prime is 20446271. The reversal of 20446260 is 6264402.

It is a self number, because there is not a number n which added to its sum of digits gives 20446260.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25587 + ... + 26373.

It is an arithmetic number, because the mean of its divisors is an integer number (1196972).

Almost surely, 2^20446260 is an apocalyptic number.

20446260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20446260 is an abundant number, since it is smaller than the sum of its proper divisors (37008396).

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

20446260 is a wasteful number, since it uses less digits than its factorization.

20446260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1232 (or 1230 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 20446260 is about 4521.7540844234. The cubic root of 20446260 is about 273.4458225603.

It can be divided in two parts, 20446 and 260, that added together give a triangular number (20706 = T₂₀₃).

The spelling of 20446260 in words is "twenty million, four hundred forty-six thousand, two hundred sixty".