43051968 has 84 divisors (see below), whose sum is σ = 126479808. Its totient is φ = 13992960.

The previous prime is 43051961. The next prime is 43051991. The reversal of 43051968 is 86915034.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43051961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22705 + ... + 24527.

It is an arithmetic number, because the mean of its divisors is an integer number (1505712).

Almost surely, 2^43051968 is an apocalyptic number.

43051968 is a gapful number since it is divisible by the number (48) 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 43051968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63239904).

43051968 is an abundant number, since it is smaller than the sum of its proper divisors (83427840).

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

43051968 is a wasteful number, since it uses less digits than its factorization.

43051968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1882 (or 1869 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 43051968 is about 6561.3998506416. The cubic root of 43051968 is about 350.4808845615.

The spelling of 43051968 in words is "forty-three million, fifty-one thousand, nine hundred sixty-eight".