20604760 has 32 divisors (see below), whose sum is σ = 50576400. Its totient is φ = 7492480.

The previous prime is 20604743. The next prime is 20604767. The reversal of 20604760 is 6740602.

It is a super-2 number, since 2×20604760² = 849112269315200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20604767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22975 + ... + 23854.

Almost surely, 2^20604760 is an apocalyptic number.

20604760 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20604760 is an abundant number, since it is smaller than the sum of its proper divisors (29971640).

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

20604760 is a wasteful number, since it uses less digits than its factorization.

20604760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46851 (or 46847 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 20604760 is about 4539.2466335285. The cubic root of 20604760 is about 274.1505912032.

The spelling of 20604760 in words is "twenty million, six hundred four thousand, seven hundred sixty".