20630748 has 36 divisors (see below), whose sum is σ = 49769160. Its totient is φ = 6651360.

The previous prime is 20630711. The next prime is 20630761. The reversal of 20630748 is 84703602.

It is a congruent number.

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, 10638 + ... + 12426.

Almost surely, 2^20630748 is an apocalyptic number.

It is an amenable number.

20630748 is an abundant number, since it is smaller than the sum of its proper divisors (29138412).

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

20630748 is a wasteful number, since it uses less digits than its factorization.

20630748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1858 (or 1825 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 20630748 is about 4542.1083210333. The cubic root of 20630748 is about 274.2658013507.

The spelling of 20630748 in words is "twenty million, six hundred thirty thousand, seven hundred forty-eight".