4120240 has 20 divisors (see below), whose sum is σ = 9579744. Its totient is φ = 1648064.

The previous prime is 4120231. The next prime is 4120253. The reversal of 4120240 is 420214.

It is a tau number, because it is divible by the number of its divisors (20).

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 4120240.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25672 + ... + 25831.

Almost surely, 2^4120240 is an apocalyptic number.

4120240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4120240 is an abundant number, since it is smaller than the sum of its proper divisors (5459504).

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

4120240 is a wasteful number, since it uses less digits than its factorization.

4120240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51516 (or 51510 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 4120240 is about 2029.8374319142. The cubic root of 4120240 is about 160.3150044194.

Adding to 4120240 its reverse (420214), we get a palindrome (4540454).

The spelling of 4120240 in words is "four million, one hundred twenty thousand, two hundred forty".