43859970 has 96 divisors (see below), whose sum is σ = 142197120. Its totient is φ = 9112320.

The previous prime is 43859969. The next prime is 43859971. The reversal of 43859970 is 7995834.

It is an interprime number because it is at equal distance from previous prime (43859969) and next prime (43859971).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43859971) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3766 + ... + 10094.

It is an arithmetic number, because the mean of its divisors is an integer number (1481220).

Almost surely, 2^43859970 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43859970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71098560).

43859970 is an abundant number, since it is smaller than the sum of its proper divisors (98337150).

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

43859970 is a wasteful number, since it uses less digits than its factorization.

43859970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6360 (or 6357 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 43859970 is about 6622.6860109777. The cubic root of 43859970 is about 352.6599244156.

The spelling of 43859970 in words is "forty-three million, eight hundred fifty-nine thousand, nine hundred seventy".