20465330 has 16 divisors (see below), whose sum is σ = 37463040. Its totient is φ = 8047152.

The previous prime is 20465323. The next prime is 20465353. The reversal of 20465330 is 3356402.

It is a junction number, because it is equal to n+sod(n) for n = 20465296 and 20465305.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16754 + ... + 17933.

It is an arithmetic number, because the mean of its divisors is an integer number (2341440).

Almost surely, 2^20465330 is an apocalyptic number.

20465330 is a deficient number, since it is larger than the sum of its proper divisors (16997710).

20465330 is a wasteful number, since it uses less digits than its factorization.

20465330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34753.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 20465330 is about 4523.8622879128. The cubic root of 20465330 is about 273.5308094393.

The spelling of 20465330 in words is "twenty million, four hundred sixty-five thousand, three hundred thirty".