20630330 has 32 divisors (see below), whose sum is σ = 42681600. Its totient is φ = 7032960.

The previous prime is 20630327. The next prime is 20630359. The reversal of 20630330 is 3303602.

It is a super-2 number, since 2×20630330² = 851221031817800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20630299 and 20630308.

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, 13190 + ... + 14670.

It is an arithmetic number, because the mean of its divisors is an integer number (1333800).

Almost surely, 2^20630330 is an apocalyptic number.

20630330 is an abundant number, since it is smaller than the sum of its proper divisors (22051270).

20630330 is a wasteful number, since it uses less digits than its factorization.

20630330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1694.

The product of its (nonzero) digits is 324, while the sum is 17.

The square root of 20630330 is about 4542.0623069262. The cubic root of 20630330 is about 274.2639490366.

Adding to 20630330 its reverse (3303602), we get a palindrome (23933932).

The spelling of 20630330 in words is "twenty million, six hundred thirty thousand, three hundred thirty".