20848620 has 48 divisors (see below), whose sum is σ = 62868960. Its totient is φ = 5131776.

The previous prime is 20848577. The next prime is 20848621. The reversal of 20848620 is 2684802.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (20848621) 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, 12585 + ... + 14144.

It is an arithmetic number, because the mean of its divisors is an integer number (1309770).

Almost surely, 2^20848620 is an apocalyptic number.

20848620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20848620 is an abundant number, since it is smaller than the sum of its proper divisors (42020340).

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

20848620 is a wasteful number, since it uses less digits than its factorization.

20848620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26754 (or 26752 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 20848620 is about 4566.0289092383. The cubic root of 20848620 is about 275.2278882354.

It can be divided in two parts, 208 and 48620, that added together give a triangular number (48828 = T₃₁₂).

The spelling of 20848620 in words is "twenty million, eight hundred forty-eight thousand, six hundred twenty".