20546379 has 48 divisors (see below), whose sum is σ = 36062208. Its totient is φ = 11446272.

The previous prime is 20546377. The next prime is 20546381. The reversal of 20546379 is 97364502.

It is an interprime number because it is at equal distance from previous prime (20546377) and next prime (20546381).

It is not a de Polignac number, because 20546379 - 2¹ = 20546377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20546377) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 79819 + ... + 80075.

It is an arithmetic number, because the mean of its divisors is an integer number (751296).

Almost surely, 2^20546379 is an apocalyptic number.

20546379 is a deficient number, since it is larger than the sum of its proper divisors (15515829).

20546379 is an equidigital number, since it uses as much as digits as its factorization.

20546379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326 (or 314 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 20546379 is about 4532.8113792656. The cubic root of 20546379 is about 273.8914225170.

The spelling of 20546379 in words is "twenty million, five hundred forty-six thousand, three hundred seventy-nine".