20038459 has 8 divisors (see below), whose sum is σ = 23011328. Its totient is φ = 17093160.

The previous prime is 20038453. The next prime is 20038471. The reversal of 20038459 is 95483002.

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

It is a de Polignac number, because none of the positive numbers 2^k-20038459 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20038459.

It is not an unprimeable number, because it can be changed into a prime (20038453) 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, 5307 + ... + 8260.

It is an arithmetic number, because the mean of its divisors is an integer number (2876416).

Almost surely, 2^20038459 is an apocalyptic number.

20038459 is a deficient number, since it is larger than the sum of its proper divisors (2972869).

20038459 is a wasteful number, since it uses less digits than its factorization.

20038459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13785.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 20038459 is about 4476.4337368043. The cubic root of 20038459 is about 271.6156398992.

The spelling of 20038459 in words is "twenty million, thirty-eight thousand, four hundred fifty-nine".