20497048 has 128 divisors (see below), whose sum is σ = 50803200. Its totient is φ = 7603200.

The previous prime is 20497039. The next prime is 20497063. The reversal of 20497048 is 84079402.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 499908 + ... + 499948.

It is an arithmetic number, because the mean of its divisors is an integer number (396900).

Almost surely, 2^20497048 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 20497048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25401600).

20497048 is an abundant number, since it is smaller than the sum of its proper divisors (30306152).

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

20497048 is a wasteful number, since it uses less digits than its factorization.

20497048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113 (or 109 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 20497048 is about 4527.3665634671. The cubic root of 20497048 is about 273.6720462205.

The spelling of 20497048 in words is "twenty million, four hundred ninety-seven thousand, forty-eight".