43998486 has 64 divisors (see below), whose sum is σ = 106168320. Its totient is φ = 11890080.

The previous prime is 43998467. The next prime is 43998491. The reversal of 43998486 is 68489934.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 60835 + ... + 61553.

It is an arithmetic number, because the mean of its divisors is an integer number (1658880).

Almost surely, 2^43998486 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43998486, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53084160).

43998486 is an abundant number, since it is smaller than the sum of its proper divisors (62169834).

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

43998486 is a wasteful number, since it uses less digits than its factorization.

With its successor (43998487) it forms an eRAP, since the sums of their prime factors are consecutive (809 and 810).

43998486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809.

The product of its digits is 1492992, while the sum is 51.

The square root of 43998486 is about 6633.1354576852. The cubic root of 43998486 is about 353.0307842836.

The spelling of 43998486 in words is "forty-three million, nine hundred ninety-eight thousand, four hundred eighty-six".