43640952 has 16 divisors (see below), whose sum is σ = 109102440. Its totient is φ = 14546976.

The previous prime is 43640951. The next prime is 43640953. The reversal of 43640952 is 25904634.

43640952 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (43640951) and next prime (43640953).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43640951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 909163 + ... + 909210.

Almost surely, 2^43640952 is an apocalyptic number.

It is an amenable number.

43640952 is an abundant number, since it is smaller than the sum of its proper divisors (65461488).

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

43640952 is a wasteful number, since it uses less digits than its factorization.

43640952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1818382 (or 1818378 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 43640952 is about 6606.1298806487. The cubic root of 43640952 is about 352.0719334739.

The spelling of 43640952 in words is "forty-three million, six hundred forty thousand, nine hundred fifty-two".