4421771440 has 40 divisors (see below), whose sum is σ = 10283524848. Its totient is φ = 1768208640.

The previous prime is 4421771437. The next prime is 4421771449. The reversal of 4421771440 is 441771244.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 4421771396 and 4421771405.

It is not an unprimeable number, because it can be changed into a prime (4421771449) 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, 427935 + ... + 438145.

Almost surely, 2^4421771440 is an apocalyptic number.

4421771440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4421771440 is an abundant number, since it is smaller than the sum of its proper divisors (5861753408).

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

4421771440 is a wasteful number, since it uses less digits than its factorization.

4421771440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15637 (or 15631 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 34.

The square root of 4421771440 is about 66496.4017071601. The cubic root of 4421771440 is about 1641.3407932747.

The spelling of 4421771440 in words is "four billion, four hundred twenty-one million, seven hundred seventy-one thousand, four hundred forty".