20464043 has 8 divisors (see below), whose sum is σ = 21875616. Its totient is φ = 19096000.

The previous prime is 20464027. The next prime is 20464057. The reversal of 20464043 is 34046402.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 20464043 - 2⁴ = 20464027 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20464063) by changing a digit.

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, 9908 + ... + 11793.

It is an arithmetic number, because the mean of its divisors is an integer number (2734452).

Almost surely, 2^20464043 is an apocalyptic number.

20464043 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

20464043 is a deficient number, since it is larger than the sum of its proper divisors (1411573).

20464043 is a wasteful number, since it uses less digits than its factorization.

20464043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21765.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 20464043 is about 4523.7200399671. The cubic root of 20464043 is about 273.5250754894.

The spelling of 20464043 in words is "twenty million, four hundred sixty-four thousand, forty-three".