43142394 has 32 divisors (see below), whose sum is σ = 87946560. Its totient is φ = 14106752.

The previous prime is 43142389. The next prime is 43142417. The reversal of 43142394 is 49324134.

43142394 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×43142394² = 3722532320102472, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92149 + ... + 92615.

It is an arithmetic number, because the mean of its divisors is an integer number (2748330).

Almost surely, 2^43142394 is an apocalyptic number.

43142394 is an abundant number, since it is smaller than the sum of its proper divisors (44804166).

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

43142394 is a wasteful number, since it uses less digits than its factorization.

43142394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734.

The product of its digits is 10368, while the sum is 30.

The square root of 43142394 is about 6568.2869912938. The cubic root of 43142394 is about 350.7260953524.

The spelling of 43142394 in words is "forty-three million, one hundred forty-two thousand, three hundred ninety-four".