42143403 has 8 divisors (see below), whose sum is σ = 56286208. Its totient is φ = 28048104.

The previous prime is 42143401. The next prime is 42143417. The reversal of 42143403 is 30434124.

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

It is not a de Polignac number, because 42143403 - 2¹ = 42143401 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42143403.

It is not an unprimeable number, because it can be changed into a prime (42143401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9751 + ... + 13392.

It is an arithmetic number, because the mean of its divisors is an integer number (7035776).

Almost surely, 2^42143403 is an apocalyptic number.

42143403 is a deficient number, since it is larger than the sum of its proper divisors (14142805).

42143403 is a wasteful number, since it uses less digits than its factorization.

42143403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23753.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 42143403 is about 6491.7950522178. The cubic root of 42143403 is about 347.9978282993.

Adding to 42143403 its reverse (30434124), we get a palindrome (72577527).

The spelling of 42143403 in words is "forty-two million, one hundred forty-three thousand, four hundred three".