20479041 has 32 divisors (see below), whose sum is σ = 33747840. Its totient is φ = 12168000.

The previous prime is 20479031. The next prime is 20479057. The reversal of 20479041 is 14097402.

It is a happy number.

It is not a de Polignac number, because 20479041 - 2⁶ = 20478977 is a prime.

It is a super-2 number, since 2×20479041² = 838782240559362, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 20478996 and 20479014.

It is not an unprimeable number, because it can be changed into a prime (20479031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15091 + ... + 16391.

It is an arithmetic number, because the mean of its divisors is an integer number (1054620).

Almost surely, 2^20479041 is an apocalyptic number.

It is an amenable number.

20479041 is a deficient number, since it is larger than the sum of its proper divisors (13268799).

20479041 is a wasteful number, since it uses less digits than its factorization.

20479041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1374 (or 1368 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 20479041 is about 4525.3774428218. The cubic root of 20479041 is about 273.5918809148.

The spelling of 20479041 in words is "twenty million, four hundred seventy-nine thousand, forty-one".