20412304 has 20 divisors (see below), whose sum is σ = 43144560. Its totient is φ = 9278240.

The previous prime is 20412277. The next prime is 20412319. The reversal of 20412304 is 40321402.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57814 + ... + 58165.

It is an arithmetic number, because the mean of its divisors is an integer number (2157228).

Almost surely, 2^20412304 is an apocalyptic number.

It is an amenable number.

20412304 is an abundant number, since it is smaller than the sum of its proper divisors (22732256).

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

20412304 is a wasteful number, since it uses less digits than its factorization.

20412304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115998 (or 115992 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 20412304 is about 4517.9977866307. The cubic root of 20412304 is about 273.2943641979.

Adding to 20412304 its reverse (40321402), we get a palindrome (60733706).

The spelling of 20412304 in words is "twenty million, four hundred twelve thousand, three hundred four".