20630762 has 4 divisors (see below), whose sum is σ = 30946146. Its totient is φ = 10315380.

The previous prime is 20630761. The next prime is 20630767. The reversal of 20630762 is 26703602.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 19193161 + 1437601 = 4381^2 + 1199^2 .

It is not an unprimeable number, because it can be changed into a prime (20630761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5157689 + ... + 5157692.

Almost surely, 2^20630762 is an apocalyptic number.

20630762 is a deficient number, since it is larger than the sum of its proper divisors (10315384).

20630762 is a wasteful number, since it uses less digits than its factorization.

20630762 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10315383.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 20630762 is about 4542.1098621676. The cubic root of 20630762 is about 274.2658633895.

The spelling of 20630762 in words is "twenty million, six hundred thirty thousand, seven hundred sixty-two".