20016480 has 192 divisors, whose sum is σ = 73156608. Its totient is φ = 4546560.

The previous prime is 20016461. The next prime is 20016499. The reversal of 20016480 is 8461002.

It is an interprime number because it is at equal distance from previous prime (20016461) and next prime (20016499).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 89649 + ... + 89871.

It is an arithmetic number, because the mean of its divisors is an integer number (381024).

Almost surely, 2^20016480 is an apocalyptic number.

20016480 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 20016480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36578304).

20016480 is an abundant number, since it is smaller than the sum of its proper divisors (53140128).

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

20016480 is a wasteful number, since it uses less digits than its factorization.

20016480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269 (or 261 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 20016480 is about 4473.9780956102. The cubic root of 20016480 is about 271.5162971947.

Adding to 20016480 its reverse (8461002), we get a palindrome (28477482).

The spelling of 20016480 in words is "twenty million, sixteen thousand, four hundred eighty".