43464240 has 240 divisors, whose sum is σ = 159820128. Its totient is φ = 10543104.

The previous prime is 43464221. The next prime is 43464241. The reversal of 43464240 is 4246434.

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

It is not an unprimeable number, because it can be changed into a prime (43464241) 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, 648687 + ... + 648753.

Almost surely, 2^43464240 is an apocalyptic number.

43464240 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 43464240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79910064).

43464240 is an abundant number, since it is smaller than the sum of its proper divisors (116355888).

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

43464240 is a wasteful number, since it uses less digits than its factorization.

43464240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156 (or 147 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

The square root of 43464240 is about 6592.7414631548. The cubic root of 43464240 is about 351.5960845545.

The spelling of 43464240 in words is "forty-three million, four hundred sixty-four thousand, two hundred forty".