43142734 has 4 divisors (see below), whose sum is σ = 64714104. Its totient is φ = 21571366.

The previous prime is 43142713. The next prime is 43142791. The reversal of 43142734 is 43724134.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×43142734² = 3722590993989512, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10785682 + ... + 10785685.

It is an arithmetic number, because the mean of its divisors is an integer number (16178526).

Almost surely, 2^43142734 is an apocalyptic number.

43142734 is a deficient number, since it is larger than the sum of its proper divisors (21571370).

43142734 is a wasteful number, since it uses less digits than its factorization.

43142734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21571369.

The product of its digits is 8064, while the sum is 28.

The square root of 43142734 is about 6568.3128731814. The cubic root of 43142734 is about 350.7270166933.

Adding to 43142734 its reverse (43724134), we get a palindrome (86866868).

The spelling of 43142734 in words is "forty-three million, one hundred forty-two thousand, seven hundred thirty-four".