4099390541 has 4 divisors (see below), whose sum is σ = 4100749632. Its totient is φ = 4098031452.

The previous prime is 4099390507. The next prime is 4099390549. The reversal of 4099390541 is 1450939904.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4099390541 - 2²⁶ = 4032281677 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4099390492 and 4099390501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4099390549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 675011 + ... + 681056.

It is an arithmetic number, because the mean of its divisors is an integer number (1025187408).

Almost surely, 2^4099390541 is an apocalyptic number.

It is an amenable number.

4099390541 is a deficient number, since it is larger than the sum of its proper divisors (1359091).

4099390541 is a wasteful number, since it uses less digits than its factorization.

4099390541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1359090.

The product of its (nonzero) digits is 174960, while the sum is 44.

The square root of 4099390541 is about 64026.4831222206. The cubic root of 4099390541 is about 1600.4413549352.

The spelling of 4099390541 in words is "four billion, ninety-nine million, three hundred ninety thousand, five hundred forty-one".