20924862 has 48 divisors (see below), whose sum is σ = 49226112. Its totient is φ = 5911920.

The previous prime is 20924861. The next prime is 20924873. The reversal of 20924862 is 26842902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20924861) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29937 + ... + 30627.

It is an arithmetic number, because the mean of its divisors is an integer number (1025544).

Almost surely, 2^20924862 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20924862, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24613056).

20924862 is an abundant number, since it is smaller than the sum of its proper divisors (28301250).

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

20924862 is a wasteful number, since it uses less digits than its factorization.

20924862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813 (or 806 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 20924862 is about 4574.3701205740. The cubic root of 20924862 is about 275.5629767218.

The spelling of 20924862 in words is "twenty million, nine hundred twenty-four thousand, eight hundred sixty-two".