4200440 has 32 divisors (see below), whose sum is σ = 9521280. Its totient is φ = 1667712.

The previous prime is 4200439. The next prime is 4200451. The reversal of 4200440 is 440024.

It is a super-3 number, since 3×4200440³ (a number of 21 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6617 + ... + 7223.

It is an arithmetic number, because the mean of its divisors is an integer number (297540).

Almost surely, 2^4200440 is an apocalyptic number.

4200440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4200440 is an abundant number, since it is smaller than the sum of its proper divisors (5320840).

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

4200440 is a wasteful number, since it uses less digits than its factorization.

4200440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791 (or 787 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 4200440 is about 2049.4974993886. The cubic root of 4200440 is about 161.3484986010.

Adding to 4200440 its reverse (440024), we get a palindrome (4640464).

The spelling of 4200440 in words is "four million, two hundred thousand, four hundred forty".