20308452 has 24 divisors (see below), whose sum is σ = 47460000. Its totient is φ = 6758976.

The previous prime is 20308447. The next prime is 20308481. The reversal of 20308452 is 25480302.

It is an unprimeable number.

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, 12799 + ... + 14297.

It is an arithmetic number, because the mean of its divisors is an integer number (1977500).

Almost surely, 2^20308452 is an apocalyptic number.

It is an amenable number.

20308452 is an abundant number, since it is smaller than the sum of its proper divisors (27151548).

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

20308452 is a wasteful number, since it uses less digits than its factorization.

20308452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2635 (or 2633 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 20308452 is about 4506.4899866748. The cubic root of 20308452 is about 272.8300946036.

Adding to 20308452 its reverse (25480302), we get a palindrome (45788754).

The spelling of 20308452 in words is "twenty million, three hundred eight thousand, four hundred fifty-two".