4309872 has 80 divisors (see below), whose sum is σ = 12951552. Its totient is φ = 1209600.

The previous prime is 4309867. The next prime is 4309873. The reversal of 4309872 is 2789034.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4309873) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33873 + ... + 33999.

Almost surely, 2^4309872 is an apocalyptic number.

4309872 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4309872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6475776).

4309872 is an abundant number, since it is smaller than the sum of its proper divisors (8641680).

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

4309872 is a wasteful number, since it uses less digits than its factorization.

4309872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246 (or 240 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 4309872 is about 2076.0231212585. The cubic root of 4309872 is about 162.7376813761.

The spelling of 4309872 in words is "four million, three hundred nine thousand, eight hundred seventy-two".