20682704 has 120 divisors (see below), whose sum is σ = 51568128. Its totient is φ = 7983360.

The previous prime is 20682677. The next prime is 20682719. The reversal of 20682704 is 40728602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 558974 + ... + 559010.

Almost surely, 2^20682704 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 20682704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25784064).

20682704 is an abundant number, since it is smaller than the sum of its proper divisors (30885424).

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

20682704 is a wasteful number, since it uses less digits than its factorization.

20682704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113 (or 100 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 20682704 is about 4547.8240951031. The cubic root of 20682704 is about 274.4958432377.

The spelling of 20682704 in words is "twenty million, six hundred eighty-two thousand, seven hundred four".