42039037 has 2 divisors, whose sum is σ = 42039038. Its totient is φ = 42039036.

The previous prime is 42039013. The next prime is 42039043. The reversal of 42039037 is 73093024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41718681 + 320356 = 6459^2 + 566^2 .

It is a cyclic number.

It is not a de Polignac number, because 42039037 - 2¹¹ = 42036989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42038996 and 42039014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42039047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21019518 + 21019519.

It is an arithmetic number, because the mean of its divisors is an integer number (21019519).

Almost surely, 2^42039037 is an apocalyptic number.

It is an amenable number.

42039037 is a deficient number, since it is larger than the sum of its proper divisors (1).

42039037 is an equidigital number, since it uses as much as digits as its factorization.

42039037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 42039037 is about 6483.7517688449. The cubic root of 42039037 is about 347.7103245153.

The spelling of 42039037 in words is "forty-two million, thirty-nine thousand, thirty-seven".