20239467 has 8 divisors (see below), whose sum is σ = 27311424. Its totient is φ = 13330248.

The previous prime is 20239463. The next prime is 20239487. The reversal of 20239467 is 76493202.

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

It is not a de Polignac number, because 20239467 - 2² = 20239463 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20239463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40393 + ... + 40890.

It is an arithmetic number, because the mean of its divisors is an integer number (3413928).

Almost surely, 2^20239467 is an apocalyptic number.

20239467 is a deficient number, since it is larger than the sum of its proper divisors (7071957).

20239467 is an equidigital number, since it uses as much as digits as its factorization.

20239467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81369.

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 20239467 is about 4498.8295144404. The cubic root of 20239467 is about 272.5208221331.

It can be divided in two parts, 20239 and 467, that added together give a triangular number (20706 = T₂₀₃).

The spelling of 20239467 in words is "twenty million, two hundred thirty-nine thousand, four hundred sixty-seven".