20630650 has 24 divisors (see below), whose sum is σ = 39193920. Its totient is φ = 8075760.

The previous prime is 20630647. The next prime is 20630681. The reversal of 20630650 is 5603602.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2040 + ... + 6739.

It is an arithmetic number, because the mean of its divisors is an integer number (1633080).

Almost surely, 2^20630650 is an apocalyptic number.

20630650 is a deficient number, since it is larger than the sum of its proper divisors (18563270).

20630650 is a wasteful number, since it uses less digits than its factorization.

20630650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8838 (or 8833 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 20630650 is about 4542.0975330787. The cubic root of 20630650 is about 274.2653670784.

The spelling of 20630650 in words is "twenty million, six hundred thirty thousand, six hundred fifty".