20846144 has 28 divisors (see below), whose sum is σ = 45128688. Its totient is φ = 9475200.

The previous prime is 20846129. The next prime is 20846153. The reversal of 20846144 is 44164802.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14102 + ... + 15509.

Almost surely, 2^20846144 is an apocalyptic number.

It is an amenable number.

20846144 is an abundant number, since it is smaller than the sum of its proper divisors (24282544).

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

20846144 is a wasteful number, since it uses less digits than its factorization.

With its successor (20846145) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (29624).

20846144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29634 (or 29624 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 29.

The square root of 20846144 is about 4565.7577684323. The cubic root of 20846144 is about 275.2169923706.

It can be divided in two parts, 2084 and 6144, that added together give a palindrome (8228).

The spelling of 20846144 in words is "twenty million, eight hundred forty-six thousand, one hundred forty-four".