4122272440 has 64 divisors (see below), whose sum is σ = 10896651360. Its totient is φ = 1383697920.

The previous prime is 4122272437. The next prime is 4122272449. The reversal of 4122272440 is 442722214.

It is a junction number, because it is equal to n+sod(n) for n = 4122272399 and 4122272408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4122272449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 354619 + ... + 366058.

Almost surely, 2^4122272440 is an apocalyptic number.

4122272440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4122272440 is an abundant number, since it is smaller than the sum of its proper divisors (6774378920).

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

4122272440 is a wasteful number, since it uses less digits than its factorization.

4122272440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720712 (or 720708 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 28.

The square root of 4122272440 is about 64204.9253562373. The cubic root of 4122272440 is about 1603.4136025193.

Adding to 4122272440 its reverse (442722214), we get a palindrome (4564994654).

The spelling of 4122272440 in words is "four billion, one hundred twenty-two million, two hundred seventy-two thousand, four hundred forty".