20260479 has 16 divisors (see below), whose sum is σ = 28906880. Its totient is φ = 12584160.

The previous prime is 20260477. The next prime is 20260511. The reversal of 20260479 is 97406202.

It is a happy number.

It is not a de Polignac number, because 20260479 - 2¹ = 20260477 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 (20260477) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 564 + ... + 6390.

It is an arithmetic number, because the mean of its divisors is an integer number (1806680).

Almost surely, 2^20260479 is an apocalyptic number.

20260479 is a deficient number, since it is larger than the sum of its proper divisors (8646401).

20260479 is a wasteful number, since it uses less digits than its factorization.

20260479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5910.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 20260479 is about 4501.1641827421. The cubic root of 20260479 is about 272.6150971299.

The spelling of 20260479 in words is "twenty million, two hundred sixty thousand, four hundred seventy-nine".