43141440 has 56 divisors (see below), whose sum is σ = 136977120. Its totient is φ = 11504128.

The previous prime is 43141421. The next prime is 43141451. The reversal of 43141440 is 4414134.

It is a super-2 number, since 2×43141440² = 3722367690547200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21510 + ... + 23429.

It is an arithmetic number, because the mean of its divisors is an integer number (2446020).

Almost surely, 2^43141440 is an apocalyptic number.

43141440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43141440 is an abundant number, since it is smaller than the sum of its proper divisors (93835680).

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

43141440 is a wasteful number, since it uses less digits than its factorization.

43141440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44959 (or 44949 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 43141440 is about 6568.2143692179. The cubic root of 43141440 is about 350.7235101523.

Adding to 43141440 its reverse (4414134), we get a palindrome (47555574).

The spelling of 43141440 in words is "forty-three million, one hundred forty-one thousand, four hundred forty".