20630710 has 16 divisors (see below), whose sum is σ = 37197792. Its totient is φ = 8238400.

The previous prime is 20630699. The next prime is 20630711. The reversal of 20630710 is 1703602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20630711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6255 + ... + 8965.

It is an arithmetic number, because the mean of its divisors is an integer number (2324862).

Almost surely, 2^20630710 is an apocalyptic number.

20630710 is a deficient number, since it is larger than the sum of its proper divisors (16567082).

20630710 is a wasteful number, since it uses less digits than its factorization.

20630710 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3479.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 20630710 is about 4542.1041379519. The cubic root of 20630710 is about 274.2656329596.

The spelling of 20630710 in words is "twenty million, six hundred thirty thousand, seven hundred ten".