20342448 has 180 divisors, whose sum is σ = 70185240. Its totient is φ = 5624640.

The previous prime is 20342447. The next prime is 20342461. The reversal of 20342448 is 84424302.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

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

It is not an unprimeable number, because it can be changed into a prime (20342447) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 656193 + ... + 656223.

It is an arithmetic number, because the mean of its divisors is an integer number (389918).

Almost surely, 2^20342448 is an apocalyptic number.

20342448 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 20342448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35092620).

20342448 is an abundant number, since it is smaller than the sum of its proper divisors (49842792).

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

20342448 is a wasteful number, since it uses less digits than its factorization.

20342448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93 (or 43 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

The square root of 20342448 is about 4510.2603029094. The cubic root of 20342448 is about 272.9822473663.

Multiplying 20342448 by its sum of digits (27), we get a square (549246096 = 23436²).

20342448 divided by its sum of digits (27) gives a square (753424 = 868²).

The spelling of 20342448 in words is "twenty million, three hundred forty-two thousand, four hundred forty-eight".