20254330 has 16 divisors (see below), whose sum is σ = 36541440. Its totient is φ = 8083152.

The previous prime is 20254319. The next prime is 20254331. The reversal of 20254330 is 3345202.

It is a junction number, because it is equal to n+sod(n) for n = 20254298 and 20254307.

It is not an unprimeable number, because it can be changed into a prime (20254331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2791 + ... + 6949.

It is an arithmetic number, because the mean of its divisors is an integer number (2283840).

Almost surely, 2^20254330 is an apocalyptic number.

20254330 is a deficient number, since it is larger than the sum of its proper divisors (16287110).

20254330 is a wasteful number, since it uses less digits than its factorization.

20254330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4653.

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 20254330 is about 4500.4810853952. The cubic root of 20254330 is about 272.5875150271.

Adding to 20254330 its reverse (3345202), we get a palindrome (23599532).

The spelling of 20254330 in words is "twenty million, two hundred fifty-four thousand, three hundred thirty".