20124304 has 20 divisors (see below), whose sum is σ = 39211900. Its totient is φ = 10005120.

The previous prime is 20124271. The next prime is 20124323. The reversal of 20124304 is 40342102.

It can be written as a sum of positive squares in 2 ways, for example, as 7507600 + 12616704 = 2740^2 + 3552^2 .

It is a super-2 number, since 2×20124304² = 809975222968832, which contains 22 as substring.

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, 579 + ... + 6370.

It is an arithmetic number, because the mean of its divisors is an integer number (1960595).

Almost surely, 2^20124304 is an apocalyptic number.

It is an amenable number.

20124304 is a deficient number, since it is larger than the sum of its proper divisors (19087596).

20124304 is a wasteful number, since it uses less digits than its factorization.

20124304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7138 (or 7132 counting only the distinct ones).

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

The square root of 20124304 is about 4486.0120374337. The cubic root of 20124304 is about 272.0029555619.

Adding to 20124304 its reverse (40342102), we get a palindrome (60466406).

The spelling of 20124304 in words is "twenty million, one hundred twenty-four thousand, three hundred four".