42273437 has 2 divisors, whose sum is σ = 42273438. Its totient is φ = 42273436.

The previous prime is 42273431. The next prime is 42273479. The reversal of 42273437 is 73437224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25512601 + 16760836 = 5051^2 + 4094^2 .

It is a cyclic number.

It is not a de Polignac number, because 42273437 - 2⁴ = 42273421 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42273431) 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, 21136718 + 21136719.

It is an arithmetic number, because the mean of its divisors is an integer number (21136719).

Almost surely, 2^42273437 is an apocalyptic number.

It is an amenable number.

42273437 is a deficient number, since it is larger than the sum of its proper divisors (1).

42273437 is an equidigital number, since it uses as much as digits as its factorization.

42273437 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28224, while the sum is 32.

The square root of 42273437 is about 6501.8025962036. The cubic root of 42273437 is about 348.3553780350.

The spelling of 42273437 in words is "forty-two million, two hundred seventy-three thousand, four hundred thirty-seven".