20026480 has 40 divisors (see below), whose sum is σ = 46863072. Its totient is φ = 7958784.

The previous prime is 20026471. The next prime is 20026481. The reversal of 20026480 is 8462002.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20026481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13117 + ... + 14563.

Almost surely, 2^20026480 is an apocalyptic number.

20026480 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 20026480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23431536).

20026480 is an abundant number, since it is smaller than the sum of its proper divisors (26836592).

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

20026480 is a wasteful number, since it uses less digits than its factorization.

20026480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1633 (or 1627 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 20026480 is about 4475.0955297066. The cubic root of 20026480 is about 271.5615051257.

Adding to 20026480 its reverse (8462002), we get a palindrome (28488482).

The spelling of 20026480 in words is "twenty million, twenty-six thousand, four hundred eighty".