4049445408 has 48 divisors (see below), whose sum is σ = 10650328416. Its totient is φ = 1347207680.

The previous prime is 4049445391. The next prime is 4049445409. The reversal of 4049445408 is 8045449404.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×4049445408² = 32796016224744572928, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4049445408.

It is not an unprimeable number, because it can be changed into a prime (4049445409) 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, 9535 + ... + 90497.

It is an arithmetic number, because the mean of its divisors is an integer number (221881842).

Almost surely, 2^4049445408 is an apocalyptic number.

4049445408 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

4049445408 is an abundant number, since it is smaller than the sum of its proper divisors (6600883008).

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

4049445408 is a wasteful number, since it uses less digits than its factorization.

4049445408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81497 (or 81489 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 42.

The square root of 4049445408 is about 63635.2528713448. The cubic root of 4049445408 is about 1593.9150921882.

The spelling of 4049445408 in words is "four billion, forty-nine million, four hundred forty-five thousand, four hundred eight".