43140630 has 96 divisors (see below), whose sum is σ = 114683904. Its totient is φ = 10378368.

The previous prime is 43140607. The next prime is 43140637. The reversal of 43140630 is 3604134.

It is a super-2 number, since 2×43140630² = 3722227913593800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 43140597 and 43140606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43140637) 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, 339627 + ... + 339753.

It is an arithmetic number, because the mean of its divisors is an integer number (1194624).

Almost surely, 2^43140630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43140630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57341952).

43140630 is an abundant number, since it is smaller than the sum of its proper divisors (71543274).

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

43140630 is a wasteful number, since it uses less digits than its factorization.

43140630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230 (or 217 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 43140630 is about 6568.1527083344. The cubic root of 43140630 is about 350.7213151412.

Adding to 43140630 its reverse (3604134), we get a palindrome (46744764).

The spelling of 43140630 in words is "forty-three million, one hundred forty thousand, six hundred thirty".