20479119 has 8 divisors (see below), whose sum is σ = 27363072. Its totient is φ = 13623960.

The previous prime is 20479117. The next prime is 20479139. The reversal of 20479119 is 91197402.

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

It is not a de Polignac number, because 20479119 - 2¹ = 20479117 is a prime.

It is a super-2 number, since 2×20479119² = 838788630032322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 20479119.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20479117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5479 + ... + 8424.

It is an arithmetic number, because the mean of its divisors is an integer number (3420384).

Almost surely, 2^20479119 is an apocalyptic number.

20479119 is a deficient number, since it is larger than the sum of its proper divisors (6883953).

20479119 is a wasteful number, since it uses less digits than its factorization.

20479119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14397.

The product of its (nonzero) digits is 4536, while the sum is 33.

The square root of 20479119 is about 4525.3860608792. The cubic root of 20479119 is about 273.5922282641.

The spelling of 20479119 in words is "twenty million, four hundred seventy-nine thousand, one hundred nineteen".