4099545 has 16 divisors (see below), whose sum is σ = 7288320. Its totient is φ = 2186352.

The previous prime is 4099541. The next prime is 4099561. The reversal of 4099545 is 5459904.

It is not a de Polignac number, because 4099545 - 2² = 4099541 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4099541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15049 + ... + 15318.

It is an arithmetic number, because the mean of its divisors is an integer number (455520).

Almost surely, 2^4099545 is an apocalyptic number.

4099545 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4099545 is a deficient number, since it is larger than the sum of its proper divisors (3188775).

4099545 is a wasteful number, since it uses less digits than its factorization.

4099545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30381 (or 30375 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 4099545 is about 2024.7333157727. The cubic root of 4099545 is about 160.0461455441.

The spelling of 4099545 in words is "four million, ninety-nine thousand, five hundred forty-five".