43454142 has 24 divisors (see below), whose sum is σ = 99689616. Its totient is φ = 13632576.

The previous prime is 43454129. The next prime is 43454167. The reversal of 43454142 is 24145434.

It is a happy number.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70698 + ... + 71309.

It is an arithmetic number, because the mean of its divisors is an integer number (4153734).

Almost surely, 2^43454142 is an apocalyptic number.

43454142 is an abundant number, since it is smaller than the sum of its proper divisors (56235474).

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

43454142 is a wasteful number, since it uses less digits than its factorization.

43454142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142032 (or 142029 counting only the distinct ones).

The product of its digits is 7680, while the sum is 27.

The square root of 43454142 is about 6591.9755764111. The cubic root of 43454142 is about 351.5688537992.

Adding to 43454142 its reverse (24145434), we get a palindrome (67599576).

The spelling of 43454142 in words is "forty-three million, four hundred fifty-four thousand, one hundred forty-two".