43965142 has 8 divisors (see below), whose sum is σ = 71020656. Its totient is φ = 20291592.

The previous prime is 43965127. The next prime is 43965149. The reversal of 43965142 is 24156934.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×43965142² = 3865867422160328, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 43965098 and 43965107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43965149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 845458 + ... + 845509.

It is an arithmetic number, because the mean of its divisors is an integer number (8877582).

Almost surely, 2^43965142 is an apocalyptic number.

43965142 is a deficient number, since it is larger than the sum of its proper divisors (27055514).

43965142 is a wasteful number, since it uses less digits than its factorization.

43965142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1690982.

The product of its digits is 25920, while the sum is 34.

The square root of 43965142 is about 6630.6215394939. The cubic root of 43965142 is about 352.9415809614.

The spelling of 43965142 in words is "forty-three million, nine hundred sixty-five thousand, one hundred forty-two".