42372433 has 2 divisors, whose sum is σ = 42372434. Its totient is φ = 42372432.

The previous prime is 42372431. The next prime is 42372457. The reversal of 42372433 is 33427324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29289744 + 13082689 = 5412^2 + 3617^2 .

It is a cyclic number.

It is not a de Polignac number, because 42372433 - 2¹ = 42372431 is a prime.

Together with 42372431, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (42372431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21186216 + 21186217.

It is an arithmetic number, because the mean of its divisors is an integer number (21186217).

Almost surely, 2^42372433 is an apocalyptic number.

It is an amenable number.

42372433 is a deficient number, since it is larger than the sum of its proper divisors (1).

42372433 is an equidigital number, since it uses as much as digits as its factorization.

42372433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 28.

The square root of 42372433 is about 6509.4111100775. The cubic root of 42372433 is about 348.6270924321.

Adding to 42372433 its reverse (33427324), we get a palindrome (75799757).

It can be divided in two parts, 4237 and 2433, that added together give a triangular number (6670 = T₁₁₅).

The spelling of 42372433 in words is "forty-two million, three hundred seventy-two thousand, four hundred thirty-three".