2144604 has 72 divisors (see below), whose sum is σ = 6315904. Its totient is φ = 554400.

The previous prime is 2144551. The next prime is 2144609. The reversal of 2144604 is 4064412.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an Ulam number.

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144609) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10059 + ... + 10269.

2^2144604 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2144604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3157952).

2144604 is an abundant number, since it is smaller than the sum of its proper divisors (4171300).

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

2144604 is a wasteful number, since it uses less digits than its factorization.

2144604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247 (or 234 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 2144604 is about 1464.4466531766. The cubic root of 2144604 is about 128.9582221543.

The spelling of 2144604 in words is "two million, one hundred forty-four thousand, six hundred four".