20346036 has 24 divisors (see below), whose sum is σ = 49973280. Its totient is φ = 6424992.

The previous prime is 20346019. The next prime is 20346043. The reversal of 20346036 is 63064302.

It is a super-2 number, since 2×20346036² = 827922361826592, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20345997 and 20346015.

It is a congruent number.

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, 44391 + ... + 44846.

It is an arithmetic number, because the mean of its divisors is an integer number (2082220).

Almost surely, 2^20346036 is an apocalyptic number.

It is an amenable number.

20346036 is an abundant number, since it is smaller than the sum of its proper divisors (29627244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20346036 is a wasteful number, since it uses less digits than its factorization.

20346036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89263 (or 89261 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

The square root of 20346036 is about 4510.6580451194. The cubic root of 20346036 is about 272.9982959547.

The spelling of 20346036 in words is "twenty million, three hundred forty-six thousand, thirty-six".