4055440242 has 32 divisors (see below), whose sum is σ = 9271498752. Its totient is φ = 1158457104.

The previous prime is 4055440189. The next prime is 4055440271. The reversal of 4055440242 is 2420445504.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 335223 + ... + 347109.

It is an arithmetic number, because the mean of its divisors is an integer number (289734336).

Almost surely, 2^4055440242 is an apocalyptic number.

4055440242 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

4055440242 is an abundant number, since it is smaller than the sum of its proper divisors (5216058510).

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

4055440242 is a wasteful number, since it uses less digits than its factorization.

4055440242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20022.

The product of its (nonzero) digits is 25600, while the sum is 30.

The square root of 4055440242 is about 63682.3385406032. The cubic root of 4055440242 is about 1594.7012529314.

Adding to 4055440242 its reverse (2420445504), we get a palindrome (6475885746).

The spelling of 4055440242 in words is "four billion, fifty-five million, four hundred forty thousand, two hundred forty-two".