20543038 has 16 divisors (see below), whose sum is σ = 32768064. Its totient is φ = 9625600.

The previous prime is 20542999. The next prime is 20543051. The reversal of 20543038 is 83034502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7563 + ... + 9913.

It is an arithmetic number, because the mean of its divisors is an integer number (2048004).

Almost surely, 2^20543038 is an apocalyptic number.

20543038 is a deficient number, since it is larger than the sum of its proper divisors (12225026).

20543038 is a wasteful number, since it uses less digits than its factorization.

20543038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2627.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 20543038 is about 4532.4428292037. The cubic root of 20543038 is about 273.8765760917.

The spelling of 20543038 in words is "twenty million, five hundred forty-three thousand, thirty-eight".