20598000 has 80 divisors (see below), whose sum is σ = 66427296. Its totient is φ = 5491200.

The previous prime is 20597971. The next prime is 20598001. The reversal of 20598000 is 89502.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20598001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4284 + ... + 7716.

Almost surely, 2^20598000 is an apocalyptic number.

20598000 is a gapful number since it is divisible by the number (20) 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 20598000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33213648).

20598000 is an abundant number, since it is smaller than the sum of its proper divisors (45829296).

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

20598000 is a wasteful number, since it uses less digits than its factorization.

20598000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3459 (or 3443 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 20598000 is about 4538.5019554915. The cubic root of 20598000 is about 274.1206068580.

The spelling of 20598000 in words is "twenty million, five hundred ninety-eight thousand".