20376385 has 8 divisors (see below), whose sum is σ = 25048296. Its totient is φ = 15903360.

The previous prime is 20376373. The next prime is 20376439. The reversal of 20376385 is 58367302.

It can be written as a sum of positive squares in 4 ways, for example, as 9216 + 20367169 = 96^2 + 4513^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-20376385 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20376385.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49494 + ... + 49903.

It is an arithmetic number, because the mean of its divisors is an integer number (3131037).

Almost surely, 2^20376385 is an apocalyptic number.

It is an amenable number.

20376385 is a deficient number, since it is larger than the sum of its proper divisors (4671911).

20376385 is an equidigital number, since it uses as much as digits as its factorization.

20376385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99443.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 20376385 is about 4514.0209348208. The cubic root of 20376385 is about 273.1339670860.

The spelling of 20376385 in words is "twenty million, three hundred seventy-six thousand, three hundred eighty-five".