20604470 has 8 divisors (see below), whose sum is σ = 37088064. Its totient is φ = 8241784.

The previous prime is 20604457. The next prime is 20604499. The reversal of 20604470 is 7440602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1030214 + ... + 1030233.

It is an arithmetic number, because the mean of its divisors is an integer number (4636008).

Almost surely, 2^20604470 is an apocalyptic number.

20604470 is a deficient number, since it is larger than the sum of its proper divisors (16483594).

20604470 is a wasteful number, since it uses less digits than its factorization.

20604470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2060454.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 20604470 is about 4539.2146897894. The cubic root of 20604470 is about 274.1493050272.

The spelling of 20604470 in words is "twenty million, six hundred four thousand, four hundred seventy".