20604662 has 8 divisors (see below), whose sum is σ = 33284496. Its totient is φ = 9509832.

The previous prime is 20604613. The next prime is 20604679. The reversal of 20604662 is 26640602.

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

It is a super-2 number, since 2×20604662² = 849104192268488, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26), and also a Moran number because the ratio is a prime number: 792487 = 20604662 / (2 + 0 + 6 + 0 + 4 + 6 + 6 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 396218 + ... + 396269.

It is an arithmetic number, because the mean of its divisors is an integer number (4160562).

Almost surely, 2^20604662 is an apocalyptic number.

20604662 is a deficient number, since it is larger than the sum of its proper divisors (12679834).

20604662 is a wasteful number, since it uses less digits than its factorization.

20604662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 792502.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 20604662 is about 4539.2358387729. The cubic root of 20604662 is about 274.1501565657.

The spelling of 20604662 in words is "twenty million, six hundred four thousand, six hundred sixty-two".