20248704 has 224 divisors, whose sum is σ = 71351040. Its totient is φ = 5598720.

The previous prime is 20248691. The next prime is 20248729. The reversal of 20248704 is 40784202.

It is a tau number, because it is divible by the number of its divisors (224).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 653169 + ... + 653199.

Almost surely, 2^20248704 is an apocalyptic number.

20248704 is a gapful number since it is divisible by the number (24) 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 20248704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35675520).

20248704 is an abundant number, since it is smaller than the sum of its proper divisors (51102336).

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

20248704 is an frugal number, since it uses more digits than its factorization.

20248704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70 (or 43 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 20248704 is about 4499.8559976959. The cubic root of 20248704 is about 272.5622740149.

The spelling of 20248704 in words is "twenty million, two hundred forty-eight thousand, seven hundred four".