4120440 has 32 divisors (see below), whose sum is σ = 12361680. Its totient is φ = 1098752.

The previous prime is 4120429. The next prime is 4120471. The reversal of 4120440 is 440214.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 17049 + ... + 17288.

Almost surely, 2^4120440 is an apocalyptic number.

4120440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4120440 is an abundant number, since it is smaller than the sum of its proper divisors (8241240).

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

4120440 is a wasteful number, since it uses less digits than its factorization.

4120440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34351 (or 34347 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 4120440 is about 2029.8866963454. The cubic root of 4120440 is about 160.3175983202.

Adding to 4120440 its reverse (440214), we get a palindrome (4560654).

It can be divided in two parts, 4120 and 440, that added together give a triangular number (4560 = T₉₅).

The spelling of 4120440 in words is "four million, one hundred twenty thousand, four hundred forty".