20430302 has 16 divisors (see below), whose sum is σ = 33011712. Its totient is φ = 9455160.

The previous prime is 20430251. The next prime is 20430307. The reversal of 20430302 is 20303402.

It is a super-2 number, since 2×20430302² = 834794479622408, which contains 22 as substring.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20430307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5738 + ... + 8589.

It is an arithmetic number, because the mean of its divisors is an integer number (2063232).

Almost surely, 2^20430302 is an apocalyptic number.

20430302 is a deficient number, since it is larger than the sum of its proper divisors (12581410).

20430302 is a wasteful number, since it uses less digits than its factorization.

20430302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14383.

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 20430302 is about 4519.9891592790. The cubic root of 20430302 is about 273.3746639200.

Adding to 20430302 its reverse (20303402), we get a palindrome (40733704).

The spelling of 20430302 in words is "twenty million, four hundred thirty thousand, three hundred two".