4203940 has 96 divisors (see below), whose sum is σ = 10725120. Its totient is φ = 1368576.

The previous prime is 4203931. The next prime is 4203961. The reversal of 4203940 is 493024.

It is a super-2 number, since 2×4203940² = 35346223047200, which contains 22 as substring.

It is a d-powerful number, because it can be written as 4⁵ + 2¹¹ + 0 + 3 + 9⁴ + 4¹¹ + 0 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 113602 + ... + 113638.

It is an arithmetic number, because the mean of its divisors is an integer number (111720).

Almost surely, 2^4203940 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 4203940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5362560).

4203940 is an abundant number, since it is smaller than the sum of its proper divisors (6521180).

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

4203940 is a wasteful number, since it uses less digits than its factorization.

4203940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101 (or 99 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 4203940 is about 2050.3511894307. The cubic root of 4203940 is about 161.3933004922.

Adding to 4203940 its reverse (493024), we get a palindrome (4696964).

The spelling of 4203940 in words is "four million, two hundred three thousand, nine hundred forty".