4321072 has 40 divisors (see below), whose sum is σ = 9811872. Its totient is φ = 1804800.

The previous prime is 4321067. The next prime is 4321081. The reversal of 4321072 is 2701234.

It is an alternating number because its digits alternate between even and odd.

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 7 ways as a sum of consecutive naturals, for example, 4122 + ... + 5062.

Almost surely, 2^4321072 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 4321072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4905936).

4321072 is an abundant number, since it is smaller than the sum of its proper divisors (5490800).

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

4321072 is a wasteful number, since it uses less digits than its factorization.

4321072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997 (or 991 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 4321072 is about 2078.7188362066. The cubic root of 4321072 is about 162.8785274356.

It can be divided in two parts, 43 and 21072, that added together give a triangular number (21115 = T₂₀₅).

The spelling of 4321072 in words is "four million, three hundred twenty-one thousand, seventy-two".