43946240 has 144 divisors (see below), whose sum is σ = 120187200. Its totient is φ = 15261696.

The previous prime is 43946197. The next prime is 43946299. The reversal of 43946240 is 4264934.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 43946197 and 43946206.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 316091 + ... + 316229.

Almost surely, 2^43946240 is an apocalyptic number.

43946240 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 43946240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60093600).

43946240 is an abundant number, since it is smaller than the sum of its proper divisors (76240960).

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

43946240 is a wasteful number, since it uses less digits than its factorization.

43946240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192 (or 178 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 43946240 is about 6629.1960296857. The cubic root of 43946240 is about 352.8909934751.

The spelling of 43946240 in words is "forty-three million, nine hundred forty-six thousand, two hundred forty".