20016704 has 56 divisors (see below), whose sum is σ = 41696640. Its totient is φ = 9524736.

The previous prime is 20016697. The next prime is 20016713. The reversal of 20016704 is 40761002.

20016704 = T₆₇₂ + T₆₇₃ + ... + T₇₅₀.

It is a super-3 number, since 3×20016704³ (a number of 23 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187019 + ... + 187125.

Almost surely, 2^20016704 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 20016704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20848320).

20016704 is an abundant number, since it is smaller than the sum of its proper divisors (21679936).

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

20016704 is a wasteful number, since it uses less digits than its factorization.

20016704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235 (or 225 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 20016704 is about 4474.0031291898. The cubic root of 20016704 is about 271.5173100172.

Adding to 20016704 its reverse (40761002), we get a palindrome (60777706).

The spelling of 20016704 in words is "twenty million, sixteen thousand, seven hundred four".