43440099 has 16 divisors (see below), whose sum is σ = 61660800. Its totient is φ = 27124416.

The previous prime is 43440091. The next prime is 43440119. The reversal of 43440099 is 99004434.

It is a happy number.

It is not a de Polignac number, because 43440099 - 2³ = 43440091 is a prime.

It is a super-2 number, since 2×43440099² = 3774084402259602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (43440091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 792 + ... + 9354.

It is an arithmetic number, because the mean of its divisors is an integer number (3853800).

Almost surely, 2^43440099 is an apocalyptic number.

43440099 is a deficient number, since it is larger than the sum of its proper divisors (18220701).

43440099 is a wasteful number, since it uses less digits than its factorization.

43440099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8674.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 43440099 is about 6590.9103316613. The cubic root of 43440099 is about 351.5309777525.

The spelling of 43440099 in words is "forty-three million, four hundred forty thousand, ninety-nine".