20608490 has 32 divisors (see below), whose sum is σ = 43766784. Its totient is φ = 6837120.

The previous prime is 20608477. The next prime is 20608501. The reversal of 20608490 is 9480602.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2579 + ... + 6918.

It is an arithmetic number, because the mean of its divisors is an integer number (1367712).

Almost surely, 2^20608490 is an apocalyptic number.

20608490 is an abundant number, since it is smaller than the sum of its proper divisors (23158294).

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

20608490 is a wasteful number, since it uses less digits than its factorization.

20608490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9542.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 20608490 is about 4539.6574760658. The cubic root of 20608490 is about 274.1671330121.

The spelling of 20608490 in words is "twenty million, six hundred eight thousand, four hundred ninety".