20382386 has 4 divisors (see below), whose sum is σ = 30573582. Its totient is φ = 10191192.

The previous prime is 20382379. The next prime is 20382391. The reversal of 20382386 is 68328302.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12924025 + 7458361 = 3595^2 + 2731^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 5095595 + ... + 5095598.

Almost surely, 2^20382386 is an apocalyptic number.

20382386 is a deficient number, since it is larger than the sum of its proper divisors (10191196).

20382386 is a wasteful number, since it uses less digits than its factorization.

20382386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10191195.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 20382386 is about 4514.6855925967. The cubic root of 20382386 is about 273.1607777961.

The spelling of 20382386 in words is "twenty million, three hundred eighty-two thousand, three hundred eighty-six".