20416704 has 112 divisors (see below), whose sum is σ = 67397376. Its totient is φ = 5299200.

The previous prime is 20416703. The next prime is 20416717. The reversal of 20416704 is 40761402.

It is a tau number, because it is divible by the number of its divisors (112).

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

It is not an unprimeable number, because it can be changed into a prime (20416703) 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, 14094 + ... + 15474.

Almost surely, 2^20416704 is an apocalyptic number.

20416704 is a gapful number since it is divisible by the number (24) 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 20416704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33698688).

20416704 is an abundant number, since it is smaller than the sum of its proper divisors (46980672).

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

20416704 is a wasteful number, since it uses less digits than its factorization.

20416704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1414 (or 1404 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 20416704 is about 4518.4847017557. The cubic root of 20416704 is about 273.3139995579.

The spelling of 20416704 in words is "twenty million, four hundred sixteen thousand, seven hundred four".