4407842640 has 40 divisors (see below), whose sum is σ = 13664312928. Its totient is φ = 1175424640.

The previous prime is 4407842599. The next prime is 4407842651. The reversal of 4407842640 is 462487044.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9182766 + ... + 9183245.

Almost surely, 2^4407842640 is an apocalyptic number.

4407842640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4407842640 is an abundant number, since it is smaller than the sum of its proper divisors (9256470288).

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

4407842640 is a wasteful number, since it uses less digits than its factorization.

4407842640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18366027 (or 18366021 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 39.

The square root of 4407842640 is about 66391.5856114312. The cubic root of 4407842640 is about 1639.6155454162.

The spelling of 4407842640 in words is "four billion, four hundred seven million, eight hundred forty-two thousand, six hundred forty".