20541882 has 32 divisors (see below), whose sum is σ = 44684352. Its totient is φ = 6269184.

The previous prime is 20541881. The next prime is 20541883. The reversal of 20541882 is 28814502.

It is an interprime number because it is at equal distance from previous prime (20541881) and next prime (20541883).

It is a super-2 number, since 2×20541882² = 843937832203848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20541881) 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, 1053 + ... + 6495.

It is an arithmetic number, because the mean of its divisors is an integer number (1396386).

Almost surely, 2^20541882 is an apocalyptic number.

20541882 is an abundant number, since it is smaller than the sum of its proper divisors (24142470).

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

20541882 is a wasteful number, since it uses less digits than its factorization.

20541882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5502.

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 20541882 is about 4532.3153023593. The cubic root of 20541882 is about 273.8714387915.

The spelling of 20541882 in words is "twenty million, five hundred forty-one thousand, eight hundred eighty-two".