40898 has 18 divisors (see below), whose sum is σ = 73017. Its totient is φ = 17160.

The previous prime is 40897. The next prime is 40903. The reversal of 40898 is 89804.

It can be written as a sum of positive squares in 2 ways, for example, as 34969 + 5929 = 187^2 + 77^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=143.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40898.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 40898.

It is not an unprimeable number, because it can be changed into a prime (40897) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3140 + ... + 3152.

2⁴⁰⁸⁹⁸ is an apocalyptic number.

40898 is a deficient number, since it is larger than the sum of its proper divisors (32119).

40898 is a wasteful number, since it uses less digits than its factorization.

40898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50 (or 26 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 40898 is about 202.2325394194. The cubic root of 40898 is about 34.4535536859.

The spelling of 40898 in words is "forty thousand, eight hundred ninety-eight".