4123818 has 16 divisors (see below), whose sum is σ = 9164160. Its totient is φ = 1374588.

The previous prime is 4123813. The next prime is 4123841. The reversal of 4123818 is 8183214.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 4123791 and 4123800.

It is not an unprimeable number, because it can be changed into a prime (4123813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38130 + ... + 38237.

It is an arithmetic number, because the mean of its divisors is an integer number (572760).

Almost surely, 2^4123818 is an apocalyptic number.

4123818 is an abundant number, since it is smaller than the sum of its proper divisors (5040342).

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

4123818 is a wasteful number, since it uses less digits than its factorization.

4123818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76378 (or 76372 counting only the distinct ones).

The product of its digits is 1536, while the sum is 27.

The square root of 4123818 is about 2030.7185920260. The cubic root of 4123818 is about 160.3613966300.

The spelling of 4123818 in words is "four million, one hundred twenty-three thousand, eight hundred eighteen".