43981496 has 16 divisors (see below), whose sum is σ = 88809000. Its totient is φ = 20299104.

The previous prime is 43981489. The next prime is 43981501. The reversal of 43981496 is 69418934.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211346 + ... + 211553.

Almost surely, 2^43981496 is an apocalyptic number.

It is an amenable number.

43981496 is an abundant number, since it is smaller than the sum of its proper divisors (44827504).

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

43981496 is a wasteful number, since it uses less digits than its factorization.

43981496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422918 (or 422914 counting only the distinct ones).

The product of its digits is 186624, while the sum is 44.

The square root of 43981496 is about 6631.8546425566. The cubic root of 43981496 is about 352.9853375287.

The spelling of 43981496 in words is "forty-three million, nine hundred eighty-one thousand, four hundred ninety-six".