43155432 has 48 divisors (see below), whose sum is σ = 118872000. Its totient is φ = 14139936.

The previous prime is 43155421. The next prime is 43155439. The reversal of 43155432 is 23455134.

It is a super-2 number, since 2×43155432² = 3724782622213248, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 43155396 and 43155405.

It is not an unprimeable number, because it can be changed into a prime (43155439) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 832 + ... + 9327.

It is an arithmetic number, because the mean of its divisors is an integer number (2476500).

Almost surely, 2^43155432 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 43155432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59436000).

43155432 is an abundant number, since it is smaller than the sum of its proper divisors (75716568).

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

43155432 is a wasteful number, since it uses less digits than its factorization.

43155432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10230 (or 10223 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 43155432 is about 6569.2794125383. The cubic root of 43155432 is about 350.7614226012.

The spelling of 43155432 in words is "forty-three million, one hundred fifty-five thousand, four hundred thirty-two".