43996400 has 120 divisors (see below), whose sum is σ = 127313280. Its totient is φ = 14273280.

The previous prime is 43996369. The next prime is 43996423. The reversal of 43996400 is 469934.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52787 + ... + 53613.

It is an arithmetic number, because the mean of its divisors is an integer number (1060944).

Almost surely, 2^43996400 is an apocalyptic number.

43996400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43996400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63656640).

43996400 is an abundant number, since it is smaller than the sum of its proper divisors (83316880).

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

43996400 is a wasteful number, since it uses less digits than its factorization.

43996400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 871 (or 860 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 43996400 is about 6632.9782149499. The cubic root of 43996400 is about 353.0252050473.

The spelling of 43996400 in words is "forty-three million, nine hundred ninety-six thousand, four hundred".