43982464 has 64 divisors (see below), whose sum is σ = 91824480. Its totient is φ = 20966400.

The previous prime is 43982461. The next prime is 43982467. The reversal of 43982464 is 46428934.

It is an interprime number because it is at equal distance from previous prime (43982461) and next prime (43982467).

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×43982464² = 3868914279022592, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43982461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 335679 + ... + 335809.

Almost surely, 2^43982464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43982464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45912240).

43982464 is an abundant number, since it is smaller than the sum of its proper divisors (47842016).

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

43982464 is a wasteful number, since it uses less digits than its factorization.

43982464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249 (or 237 counting only the distinct ones).

The product of its digits is 165888, while the sum is 40.

The square root of 43982464 is about 6631.9276232480. The cubic root of 43982464 is about 352.9879271579.

The spelling of 43982464 in words is "forty-three million, nine hundred eighty-two thousand, four hundred sixty-four".