43465138 has 16 divisors (see below), whose sum is σ = 65940480. Its totient is φ = 21486736.

The previous prime is 43465129. The next prime is 43465139. The reversal of 43465138 is 83156434.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (43465139) 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, 113295 + ... + 113677.

It is an arithmetic number, because the mean of its divisors is an integer number (4121280).

Almost surely, 2^43465138 is an apocalyptic number.

43465138 is a deficient number, since it is larger than the sum of its proper divisors (22475342).

43465138 is a wasteful number, since it uses less digits than its factorization.

43465138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 881.

The product of its digits is 34560, while the sum is 34.

The square root of 43465138 is about 6592.8095680066. The cubic root of 43465138 is about 351.5985059406.

The spelling of 43465138 in words is "forty-three million, four hundred sixty-five thousand, one hundred thirty-eight".