4181898 has 32 divisors (see below), whose sum is σ = 10122624. Its totient is φ = 1124352.

The previous prime is 4181897. The next prime is 4181899. The reversal of 4181898 is 8981814.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (4181897) and next prime (4181899).

It is an Ulam number.

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

It is not an unprimeable number, because it can be changed into a prime (4181897) 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, 2215 + ... + 3642.

It is an arithmetic number, because the mean of its divisors is an integer number (316332).

Almost surely, 2^4181898 is an apocalyptic number.

4181898 is an abundant number, since it is smaller than the sum of its proper divisors (5940726).

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

4181898 is a wasteful number, since it uses less digits than its factorization.

4181898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5886.

The product of its digits is 18432, while the sum is 39.

The square root of 4181898 is about 2044.9689484195. The cubic root of 4181898 is about 161.1107348738.

The spelling of 4181898 in words is "four million, one hundred eighty-one thousand, eight hundred ninety-eight".