20246528 has 26 divisors (see below), whose sum is σ = 40496304. Its totient is φ = 10121216.

The previous prime is 20246491. The next prime is 20246539. The reversal of 20246528 is 82564202.

It is a self number, because there is not a number n which added to its sum of digits gives 20246528.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1625 + ... + 6567.

Almost surely, 2^20246528 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 20246528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20248152).

20246528 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20246528 is an frugal number, since it uses more digits than its factorization.

20246528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4967 (or 4945 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 20246528 is about 4499.6142056847. The cubic root of 20246528 is about 272.5525101512.

The spelling of 20246528 in words is "twenty million, two hundred forty-six thousand, five hundred twenty-eight".