4273644 has 12 divisors (see below), whose sum is σ = 9971864. Its totient is φ = 1424544.

The previous prime is 4273631. The next prime is 4273667. The reversal of 4273644 is 4463724.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 178057 + ... + 178080.

Almost surely, 2^4273644 is an apocalyptic number.

It is an amenable number.

4273644 is an abundant number, since it is smaller than the sum of its proper divisors (5698220).

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

4273644 is a wasteful number, since it uses less digits than its factorization.

4273644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356144 (or 356142 counting only the distinct ones).

The product of its digits is 16128, while the sum is 30.

The square root of 4273644 is about 2067.2793715413. The cubic root of 4273644 is about 162.2804166295.

The spelling of 4273644 in words is "four million, two hundred seventy-three thousand, six hundred forty-four".