20414579 has 8 divisors (see below), whose sum is σ = 21196560. Its totient is φ = 19637856.

The previous prime is 20414573. The next prime is 20414621. The reversal of 20414579 is 97541402.

It is a happy number.

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 20414579 - 2¹² = 20410483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20414573) 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, 7757 + ... + 10049.

It is an arithmetic number, because the mean of its divisors is an integer number (2649570).

Almost surely, 2^20414579 is an apocalyptic number.

20414579 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

20414579 is a deficient number, since it is larger than the sum of its proper divisors (781981).

20414579 is a wasteful number, since it uses less digits than its factorization.

20414579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2629.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 20414579 is about 4518.2495504343. The cubic root of 20414579 is about 273.3045169238.

The spelling of 20414579 in words is "twenty million, four hundred fourteen thousand, five hundred seventy-nine".