42303213 has 12 divisors (see below), whose sum is σ = 61792380. Its totient is φ = 27884736.

The previous prime is 42303181. The next prime is 42303241. The reversal of 42303213 is 31230324.

It can be written as a sum of positive squares in 2 ways, for example, as 2196324 + 40106889 = 1482^2 + 6333^2 .

It is not a de Polignac number, because 42303213 - 2⁵ = 42303181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42303263) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25606 + ... + 27207.

It is an arithmetic number, because the mean of its divisors is an integer number (5149365).

Almost surely, 2^42303213 is an apocalyptic number.

It is an amenable number.

42303213 is a deficient number, since it is larger than the sum of its proper divisors (19489167).

42303213 is a wasteful number, since it uses less digits than its factorization.

42303213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52908 (or 52905 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 42303213 is about 6504.0920196442. The cubic root of 42303213 is about 348.4371488115.

Adding to 42303213 its reverse (31230324), we get a palindrome (73533537).

It can be divided in two parts, 4230321 and 3, that added together give a palindrome (4230324).

The spelling of 42303213 in words is "forty-two million, three hundred three thousand, two hundred thirteen".