20848560 has 40 divisors (see below), whose sum is σ = 64631280. Its totient is φ = 5559552.

The previous prime is 20848559. The next prime is 20848561. The reversal of 20848560 is 6584802.

It is an interprime number because it is at equal distance from previous prime (20848559) and next prime (20848561).

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (20848561) 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, 43195 + ... + 43674.

It is an arithmetic number, because the mean of its divisors is an integer number (1615782).

Almost surely, 2^20848560 is an apocalyptic number.

20848560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20848560 is an abundant number, since it is smaller than the sum of its proper divisors (43782720).

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

20848560 is a wasteful number, since it uses less digits than its factorization.

20848560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86885 (or 86879 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 20848560 is about 4566.0223389729. The cubic root of 20848560 is about 275.2276242101.

The spelling of 20848560 in words is "twenty million, eight hundred forty-eight thousand, five hundred sixty".