42143413 has 4 divisors (see below), whose sum is σ = 45385228. Its totient is φ = 38901600.

The previous prime is 42143401. The next prime is 42143417. The reversal of 42143413 is 31434124.

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

It can be written as a sum of positive squares in 2 ways, for example, as 8305924 + 33837489 = 2882^2 + 5817^2 .

It is a cyclic number.

It is not a de Polignac number, because 42143413 - 2²¹ = 40046261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42143417) 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, 1620888 + ... + 1620913.

It is an arithmetic number, because the mean of its divisors is an integer number (11346307).

Almost surely, 2^42143413 is an apocalyptic number.

It is an amenable number.

42143413 is a deficient number, since it is larger than the sum of its proper divisors (3241815).

42143413 is a wasteful number, since it uses less digits than its factorization.

42143413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3241814.

The product of its digits is 1152, while the sum is 22.

The square root of 42143413 is about 6491.7958224208. The cubic root of 42143413 is about 347.9978558242.

Adding to 42143413 its reverse (31434124), we get a palindrome (73577537).

It can be divided in two parts, 421 and 43413, that added together give a palindrome (43834).

The spelling of 42143413 in words is "forty-two million, one hundred forty-three thousand, four hundred thirteen".