43870620 has 96 divisors (see below), whose sum is σ = 133862400. Its totient is φ = 10692864.

The previous prime is 43870609. The next prime is 43870627. The reversal of 43870620 is 2607834.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43870627) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32397 + ... + 33723.

It is an arithmetic number, because the mean of its divisors is an integer number (1394400).

Almost surely, 2^43870620 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 43870620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66931200).

43870620 is an abundant number, since it is smaller than the sum of its proper divisors (89991780).

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

43870620 is a wasteful number, since it uses less digits than its factorization.

43870620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1387 (or 1385 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 43870620 is about 6623.4900166000. The cubic root of 43870620 is about 352.6884661910.

The spelling of 43870620 in words is "forty-three million, eight hundred seventy thousand, six hundred twenty".