4099294640 has 40 divisors (see below), whose sum is σ = 10892412960. Its totient is φ = 1405472256.

The previous prime is 4099294637. The next prime is 4099294721. The reversal of 4099294640 is 464929904.

It is a happy number.

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

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, 3659525 + ... + 3660644.

It is an arithmetic number, because the mean of its divisors is an integer number (272310324).

Almost surely, 2^4099294640 is an apocalyptic number.

4099294640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4099294640 is an abundant number, since it is smaller than the sum of its proper divisors (6793118320).

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

4099294640 is a wasteful number, since it uses less digits than its factorization.

4099294640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7320189 (or 7320183 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 47.

The square root of 4099294640 is about 64025.7342011788. The cubic root of 4099294640 is about 1600.4288746147.

The spelling of 4099294640 in words is "four billion, ninety-nine million, two hundred ninety-four thousand, six hundred forty".