20543962 has 8 divisors (see below), whose sum is σ = 30945600. Its totient is φ = 10228764.

The previous prime is 20543953. The next prime is 20543969. The reversal of 20543962 is 26934502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (20543969) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21012 + ... + 21967.

It is an arithmetic number, because the mean of its divisors is an integer number (3868200).

Almost surely, 2^20543962 is an apocalyptic number.

20543962 is a deficient number, since it is larger than the sum of its proper divisors (10401638).

20543962 is a wasteful number, since it uses less digits than its factorization.

20543962 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43220.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 20543962 is about 4532.5447598452. The cubic root of 20543962 is about 273.8806822380.

The spelling of 20543962 in words is "twenty million, five hundred forty-three thousand, nine hundred sixty-two".