20437248 has 144 divisors (see below), whose sum is σ = 61810560. Its totient is φ = 5947392.

The previous prime is 20437237. The next prime is 20437273. The reversal of 20437248 is 84273402.

It is a super-2 number, since 2×20437248² = 835362211627008, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 229588 + ... + 229676.

It is an arithmetic number, because the mean of its divisors is an integer number (429240).

Almost surely, 2^20437248 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 20437248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30905280).

20437248 is an abundant number, since it is smaller than the sum of its proper divisors (41373312).

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

20437248 is a wasteful number, since it uses less digits than its factorization.

20437248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144 (or 130 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 20437248 is about 4520.7574586567. The cubic root of 20437248 is about 273.4056415215.

The spelling of 20437248 in words is "twenty million, four hundred thirty-seven thousand, two hundred forty-eight".