43142544 has 50 divisors (see below), whose sum is σ = 124870790. Its totient is φ = 14380416.

The previous prime is 43142543. The next prime is 43142551. The reversal of 43142544 is 44524134.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 25401600 + 17740944 = 5040^2 + 4212^2 .

It is a super-2 number, since 2×43142544² = 3722558205583872, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (43142543) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 15349 + ... + 17940.

Almost surely, 2^43142544 is an apocalyptic number.

It is an amenable number.

43142544 is an abundant number, since it is smaller than the sum of its proper divisors (81728246).

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

43142544 is a wasteful number, since it uses less digits than its factorization.

43142544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33309 (or 33294 counting only the distinct ones).

The product of its digits is 7680, while the sum is 27.

The square root of 43142544 is about 6568.2984097862. The cubic root of 43142544 is about 350.7265018269.

Adding to 43142544 its reverse (44524134), we get a palindrome (87666678).

The spelling of 43142544 in words is "forty-three million, one hundred forty-two thousand, five hundred forty-four".