4120212040 has 80 divisors (see below), whose sum is σ = 10815165180. Its totient is φ = 1412611200.

The previous prime is 4120212037. The next prime is 4120212113. The reversal of 4120212040 is 402120214.

4120212040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 4095232036 + 24980004 = 63994^2 + 4998^2 .

It is a super-2 number, since 2×4120212040² = 33952294509121923200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 74590 + ... + 117490.

Almost surely, 2^4120212040 is an apocalyptic number.

4120212040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4120212040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5407582590).

4120212040 is an abundant number, since it is smaller than the sum of its proper divisors (6694953140).

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

4120212040 is an equidigital number, since it uses as much as digits as its factorization.

4120212040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42940 (or 42915 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 4120212040 is about 64188.8778527869. The cubic root of 4120212040 is about 1603.1464178533.

Adding to 4120212040 its reverse (402120214), we get a palindrome (4522332254).

The spelling of 4120212040 in words is "four billion, one hundred twenty million, two hundred twelve thousand, forty".