20346444 has 48 divisors (see below), whose sum is σ = 55050240. Its totient is φ = 6486480.

The previous prime is 20346437. The next prime is 20346451. The reversal of 20346444 is 44464302.

It is an interprime number because it is at equal distance from previous prime (20346437) and next prime (20346451).

It is a Harshad number since it is a multiple of its sum of digits (27).

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 15 ways as a sum of consecutive naturals, for example, 1612 + ... + 6579.

It is an arithmetic number, because the mean of its divisors is an integer number (1146880).

Almost surely, 2^20346444 is an apocalyptic number.

It is an amenable number.

20346444 is an abundant number, since it is smaller than the sum of its proper divisors (34703796).

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

20346444 is a wasteful number, since it uses less digits than its factorization.

20346444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8227 (or 8219 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

The square root of 20346444 is about 4510.7032711097. The cubic root of 20346444 is about 273.0001207583. Note that the first 3 decimals are identical.

Subtracting from 20346444 its sum of digits (27), we obtain a cube (20346417 = 273³).

The spelling of 20346444 in words is "twenty million, three hundred forty-six thousand, four hundred forty-four".