43942965 has 64 divisors (see below), whose sum is σ = 80953344. Its totient is φ = 20328000.

The previous prime is 43942961. The next prime is 43943047. The reversal of 43942965 is 56924934.

It is not a de Polignac number, because 43942965 - 2² = 43942961 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43942961) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 618880 + ... + 618950.

It is an arithmetic number, because the mean of its divisors is an integer number (1264896).

Almost surely, 2^43942965 is an apocalyptic number.

It is an amenable number.

43942965 is a deficient number, since it is larger than the sum of its proper divisors (37010379).

43942965 is a wasteful number, since it uses less digits than its factorization.

43942965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143 (or 121 counting only the distinct ones).

The product of its digits is 233280, while the sum is 42.

The square root of 43942965 is about 6628.9490117212. The cubic root of 43942965 is about 352.8822271073.

The spelling of 43942965 in words is "forty-three million, nine hundred forty-two thousand, nine hundred sixty-five".