43288240 has 40 divisors (see below), whose sum is σ = 101207808. Its totient is φ = 17218560.

The previous prime is 43288211. The next prime is 43288247. The reversal of 43288240 is 4288234.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (43288247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13864 + ... + 16696.

Almost surely, 2^43288240 is an apocalyptic number.

43288240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43288240 is an abundant number, since it is smaller than the sum of its proper divisors (57919568).

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

43288240 is a wasteful number, since it uses less digits than its factorization.

43288240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3037 (or 3031 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 31.

The square root of 43288240 is about 6579.3799099915. The cubic root of 43288240 is about 351.1208691882.

The spelling of 43288240 in words is "forty-three million, two hundred eighty-eight thousand, two hundred forty".