4099401905 has 16 divisors (see below), whose sum is σ = 5251132800. Its totient is φ = 3063150720.

The previous prime is 4099401821. The next prime is 4099401931. The reversal of 4099401905 is 5091049904.

It is a happy number.

It is not a de Polignac number, because 4099401905 - 2¹⁰ = 4099400881 is a prime.

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, 297140 + ... + 310629.

It is an arithmetic number, because the mean of its divisors is an integer number (328195800).

Almost surely, 2^4099401905 is an apocalyptic number.

It is an amenable number.

4099401905 is a deficient number, since it is larger than the sum of its proper divisors (1151730895).

4099401905 is a wasteful number, since it uses less digits than its factorization.

4099401905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607864.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 4099401905 is about 64026.5718666867. The cubic root of 4099401905 is about 1600.4428338053.

The spelling of 4099401905 in words is "four billion, ninety-nine million, four hundred one thousand, nine hundred five".