43432061 has 8 divisors (see below), whose sum is σ = 44291064. Its totient is φ = 42577920.

The previous prime is 43432057. The next prime is 43432091. The reversal of 43432061 is 16023434.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2343961 + 41088100 = 1531^2 + 6410^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 43432061 - 2² = 43432057 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43432001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20525 + ... + 22541.

It is an arithmetic number, because the mean of its divisors is an integer number (5536383).

Almost surely, 2^43432061 is an apocalyptic number.

It is an amenable number.

43432061 is a deficient number, since it is larger than the sum of its proper divisors (859003).

43432061 is a wasteful number, since it uses less digits than its factorization.

43432061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2431.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 43432061 is about 6590.3005242553. The cubic root of 43432061 is about 351.5092944049.

Adding to 43432061 its reverse (16023434), we get a palindrome (59455495).

The spelling of 43432061 in words is "forty-three million, four hundred thirty-two thousand, sixty-one".