20359648 has 24 divisors (see below), whose sum is σ = 40938912. Its totient is φ = 9962496.

The previous prime is 20359637. The next prime is 20359649. The reversal of 20359648 is 84695302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20359649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5265 + ... + 8272.

It is an arithmetic number, because the mean of its divisors is an integer number (1705788).

Almost surely, 2^20359648 is an apocalyptic number.

It is an amenable number.

20359648 is an abundant number, since it is smaller than the sum of its proper divisors (20579264).

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

20359648 is a wasteful number, since it uses less digits than its factorization.

20359648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13594 (or 13586 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 20359648 is about 4512.1666635886. The cubic root of 20359648 is about 273.0591632477.

The spelling of 20359648 in words is "twenty million, three hundred fifty-nine thousand, six hundred forty-eight".