4161122440 has 32 divisors (see below), whose sum is σ = 9561732480. Its totient is φ = 1629034432.

The previous prime is 4161122401. The next prime is 4161122443. The reversal of 4161122440 is 442211614.

It is not an unprimeable number, because it can be changed into a prime (4161122443) 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, 1104802 + ... + 1108561.

It is an arithmetic number, because the mean of its divisors is an integer number (298804140).

Almost surely, 2^4161122440 is an apocalyptic number.

4161122440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4161122440 is an abundant number, since it is smaller than the sum of its proper divisors (5400610040).

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

4161122440 is a wasteful number, since it uses less digits than its factorization.

4161122440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2213421 (or 2213417 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 4161122440 is about 64506.7627462424. The cubic root of 4161122440 is about 1608.4349386146.

The spelling of 4161122440 in words is "four billion, one hundred sixty-one million, one hundred twenty-two thousand, four hundred forty".