20382495 has 16 divisors (see below), whose sum is σ = 37271040. Its totient is φ = 9317664.

The previous prime is 20382487. The next prime is 20382499. The reversal of 20382495 is 59428302.

It is a happy number.

It is not a de Polignac number, because 20382495 - 2³ = 20382487 is a prime.

It is a super-2 number, since 2×20382495² = 830892204850050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20382499) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 96955 + ... + 97164.

It is an arithmetic number, because the mean of its divisors is an integer number (2329440).

Almost surely, 2^20382495 is an apocalyptic number.

20382495 is a deficient number, since it is larger than the sum of its proper divisors (16888545).

20382495 is a wasteful number, since it uses less digits than its factorization.

20382495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194134.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 20382495 is about 4514.6976642960. The cubic root of 20382495 is about 273.1612647275.

The spelling of 20382495 in words is "twenty million, three hundred eighty-two thousand, four hundred ninety-five".