4120142440 has 32 divisors (see below), whose sum is σ = 9815635080. Its totient is φ = 1551112192.

The previous prime is 4120142417. The next prime is 4120142441. The reversal of 4120142440 is 442410214.

It can be written as a sum of positive squares in 4 ways, for example, as 2680547076 + 1439595364 = 51774^2 + 37942^2 .

It is not an unprimeable number, because it can be changed into a prime (4120142441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3028837 + ... + 3030196.

Almost surely, 2^4120142440 is an apocalyptic number.

4120142440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4120142440 is an abundant number, since it is smaller than the sum of its proper divisors (5695492640).

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

4120142440 is a wasteful number, since it uses less digits than its factorization.

4120142440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6059061 (or 6059057 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 4120142440 is about 64188.3357004994. The cubic root of 4120142440 is about 1603.1373908406.

Adding to 4120142440 its reverse (442410214), we get a palindrome (4562552654).

The spelling of 4120142440 in words is "four billion, one hundred twenty million, one hundred forty-two thousand, four hundred forty".