20016479 has 8 divisors (see below), whose sum is σ = 23251488. Its totient is φ = 16875360.

The previous prime is 20016461. The next prime is 20016499. The reversal of 20016479 is 97461002.

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 20016479 - 2¹⁶ = 19950943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20016419) 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, 23012 + ... + 23865.

It is an arithmetic number, because the mean of its divisors is an integer number (2906436).

Almost surely, 2^20016479 is an apocalyptic number.

20016479 is a deficient number, since it is larger than the sum of its proper divisors (3235009).

20016479 is an equidigital number, since it uses as much as digits as its factorization.

20016479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46945.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 20016479 is about 4473.9779838528. The cubic root of 20016479 is about 271.5162926731.

The spelling of 20016479 in words is "twenty million, sixteen thousand, four hundred seventy-nine".