20359427 has 8 divisors (see below), whose sum is σ = 22440432. Its totient is φ = 18316800.

The previous prime is 20359337. The next prime is 20359441. The reversal of 20359427 is 72495302.

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 20359427 - 2¹² = 20355331 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20359393 and 20359402.

It is not an unprimeable number, because it can be changed into a prime (20359457) 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, 8474 + ... + 10607.

It is an arithmetic number, because the mean of its divisors is an integer number (2805054).

Almost surely, 2^20359427 is an apocalyptic number.

20359427 is a deficient number, since it is larger than the sum of its proper divisors (2081005).

20359427 is a wasteful number, since it uses less digits than its factorization.

20359427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19189.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 20359427 is about 4512.1421741785. The cubic root of 20359427 is about 273.0581752428.

The spelling of 20359427 in words is "twenty million, three hundred fifty-nine thousand, four hundred twenty-seven".