20023484 has 24 divisors (see below), whose sum is σ = 39958128. Its totient is φ = 8697600.

The previous prime is 20023469. The next prime is 20023513. The reversal of 20023484 is 48432002.

It is a super-2 number, since 2×20023484² = 801879822996512, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10442 + ... + 12209.

It is an arithmetic number, because the mean of its divisors is an integer number (1664922).

Almost surely, 2^20023484 is an apocalyptic number.

It is an amenable number.

20023484 is a deficient number, since it is larger than the sum of its proper divisors (19934644).

20023484 is a wasteful number, since it uses less digits than its factorization.

20023484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22685 (or 22683 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 20023484 is about 4474.7607757287. The cubic root of 20023484 is about 271.5479624089.

Adding to 20023484 its reverse (48432002), we get a palindrome (68455486).

The spelling of 20023484 in words is "twenty million, twenty-three thousand, four hundred eighty-four".