43540560 has 240 divisors, whose sum is σ = 171310464. Its totient is φ = 9704448.

The previous prime is 43540559. The next prime is 43540561. The reversal of 43540560 is 6504534.

It is an interprime number because it is at equal distance from previous prime (43540559) and next prime (43540561).

It is a tau number, because it is divible by the number of its divisors (240).

It is a super-2 number, since 2×43540560² = 3791560730227200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43540561) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 267039 + ... + 267201.

Almost surely, 2^43540560 is an apocalyptic number.

43540560 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43540560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85655232).

43540560 is an abundant number, since it is smaller than the sum of its proper divisors (127769904).

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

43540560 is a wasteful number, since it uses less digits than its factorization.

43540560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242 (or 233 counting only the distinct ones).

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

The square root of 43540560 is about 6598.5271083781. The cubic root of 43540560 is about 351.8017564848.

It can be divided in two parts, 43540 and 560, that added together give a square (44100 = 210²).

The spelling of 43540560 in words is "forty-three million, five hundred forty thousand, five hundred sixty".