20854260 has 144 divisors (see below), whose sum is σ = 75094656. Its totient is φ = 4758912.

The previous prime is 20854259. The next prime is 20854271. The reversal of 20854260 is 6245802.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 33714 + ... + 34326.

Almost surely, 2^20854260 is an apocalyptic number.

20854260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20854260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37547328).

20854260 is an abundant number, since it is smaller than the sum of its proper divisors (54240396).

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

20854260 is a wasteful number, since it uses less digits than its factorization.

20854260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644 (or 630 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 20854260 is about 4566.6464719748. The cubic root of 20854260 is about 275.2527043517.

The spelling of 20854260 in words is "twenty million, eight hundred fifty-four thousand, two hundred sixty".