20323548 has 144 divisors (see below), whose sum is σ = 63598080. Its totient is φ = 5552064.

The previous prime is 20323547. The next prime is 20323561. The reversal of 20323548 is 84532302.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20323547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 197265 + ... + 197367.

Almost surely, 2^20323548 is an apocalyptic number.

20323548 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20323548, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31799040).

20323548 is an abundant number, since it is smaller than the sum of its proper divisors (43274532).

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

20323548 is a wasteful number, since it uses less digits than its factorization.

20323548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158 (or 144 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 20323548 is about 4508.1645932685. The cubic root of 20323548 is about 272.8976793218.

The spelling of 20323548 in words is "twenty million, three hundred twenty-three thousand, five hundred forty-eight".