20823048 has 64 divisors (see below), whose sum is σ = 58320000. Its totient is φ = 6883776.

The previous prime is 20823029. The next prime is 20823059. The reversal of 20823048 is 84032802.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31861 + ... + 32507.

It is an arithmetic number, because the mean of its divisors is an integer number (911250).

Almost surely, 2^20823048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20823048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29160000).

20823048 is an abundant number, since it is smaller than the sum of its proper divisors (37496952).

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

20823048 is a wasteful number, since it uses less digits than its factorization.

20823048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811 (or 801 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 20823048 is about 4563.2278049644. The cubic root of 20823048 is about 275.1153147241.

The spelling of 20823048 in words is "twenty million, eight hundred twenty-three thousand, forty-eight".