4321902 has 32 divisors (see below), whose sum is σ = 9459072. Its totient is φ = 1308384.

The previous prime is 4321901. The next prime is 4321931. The reversal of 4321902 is 2091234.

4321902 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4321901) 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, 4813 + ... + 5639.

It is an arithmetic number, because the mean of its divisors is an integer number (295596).

Almost surely, 2^4321902 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4321902, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4729536).

4321902 is an abundant number, since it is smaller than the sum of its proper divisors (5137170).

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

4321902 is a wasteful number, since it uses less digits than its factorization.

4321902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 912.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 4321902 is about 2078.9184688198. The cubic root of 4321902 is about 162.8889554438. Note that the first 3 decimals are identical.

It can be divided in two parts, 43 and 21902, that added together give a triangular number (21945 = T₂₀₉).

The spelling of 4321902 in words is "four million, three hundred twenty-one thousand, nine hundred two".