20543468 has 12 divisors (see below), whose sum is σ = 39219432. Its totient is φ = 9337920.

The previous prime is 20543459. The next prime is 20543477. The reversal of 20543468 is 86434502.

It is an interprime number because it is at equal distance from previous prime (20543459) and next prime (20543477).

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, 233405 + ... + 233492.

It is an arithmetic number, because the mean of its divisors is an integer number (3268286).

Almost surely, 2^20543468 is an apocalyptic number.

It is an amenable number.

20543468 is a deficient number, since it is larger than the sum of its proper divisors (18675964).

20543468 is a wasteful number, since it uses less digits than its factorization.

20543468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466912 (or 466910 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 20543468 is about 4532.4902647441. The cubic root of 20543468 is about 273.8784869760.

It can be divided in two parts, 205434 and 68, that added together give a palindrome (205502).

The spelling of 20543468 in words is "twenty million, five hundred forty-three thousand, four hundred sixty-eight".