43420142 has 8 divisors (see below), whose sum is σ = 68961456. Its totient is φ = 20432992.

The previous prime is 43420133. The next prime is 43420199. The reversal of 43420142 is 24102434.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 638498 + ... + 638565.

It is an arithmetic number, because the mean of its divisors is an integer number (8620182).

Almost surely, 2^43420142 is an apocalyptic number.

43420142 is a deficient number, since it is larger than the sum of its proper divisors (25541314).

43420142 is a wasteful number, since it uses less digits than its factorization.

43420142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1277082.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 43420142 is about 6589.3961787102. The cubic root of 43420142 is about 351.4771367277.

Adding to 43420142 its reverse (24102434), we get a palindrome (67522576).

It can be divided in two parts, 4342014 and 2, that multiplied together give a triangular number (8684028 = T₄₁₆₇).

The spelling of 43420142 in words is "forty-three million, four hundred twenty thousand, one hundred forty-two".