4099878 has 24 divisors (see below), whose sum is σ = 9091368. Its totient is φ = 1334592.

The previous prime is 4099867. The next prime is 4099883. The reversal of 4099878 is 8789904.

It is a super-2 number, since 2×4099878² = 33617999229768, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1875 + ... + 3422.

It is an arithmetic number, because the mean of its divisors is an integer number (378807).

Almost surely, 2^4099878 is an apocalyptic number.

4099878 is an abundant number, since it is smaller than the sum of its proper divisors (4991490).

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

4099878 is a wasteful number, since it uses less digits than its factorization.

4099878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5348 (or 5345 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 4099878 is about 2024.8155471549. The cubic root of 4099878 is about 160.0504788643.

The spelling of 4099878 in words is "four million, ninety-nine thousand, eight hundred seventy-eight".