4381650 has 144 divisors (see below), whose sum is σ = 14624064. Its totient is φ = 915840.

The previous prime is 4381607. The next prime is 4381667. The reversal of 4381650 is 561834.

4381650 is a `hidden beast` number, since 4 + 3 + 8 + 1 + 650 = 666.

4381650 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 40897 + ... + 41003.

It is an arithmetic number, because the mean of its divisors is an integer number (101556).

Almost surely, 2^4381650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4381650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7312032).

4381650 is an abundant number, since it is smaller than the sum of its proper divisors (10242414).

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

4381650 is a wasteful number, since it uses less digits than its factorization.

4381650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145 (or 137 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 4381650 is about 2093.2391167757. The cubic root of 4381650 is about 163.6361405721.

The spelling of 4381650 in words is "four million, three hundred eighty-one thousand, six hundred fifty".