20413302 has 80 divisors (see below), whose sum is σ = 51762480. Its totient is φ = 5334336.

The previous prime is 20413291. The next prime is 20413331. The reversal of 20413302 is 20331402.

20413302 is nontrivially palindromic in base 5.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 187224 + ... + 187332.

It is an arithmetic number, because the mean of its divisors is an integer number (647031).

Almost surely, 2^20413302 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20413302, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25881240).

20413302 is an abundant number, since it is smaller than the sum of its proper divisors (31349178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20413302 is a wasteful number, since it uses less digits than its factorization.

20413302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155 (or 134 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 20413302 is about 4518.1082324353. The cubic root of 20413302 is about 273.2988181019.

Adding to 20413302 its reverse (20331402), we get a palindrome (40744704).

The spelling of 20413302 in words is "twenty million, four hundred thirteen thousand, three hundred two".