42590629 has 2 divisors, whose sum is σ = 42590630. Its totient is φ = 42590628.

The previous prime is 42590623. The next prime is 42590633. The reversal of 42590629 is 92609524.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35820225 + 6770404 = 5985^2 + 2602^2 .

It is a cyclic number.

It is not a de Polignac number, because 42590629 - 2²¹ = 40493477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42590623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21295314 + 21295315.

It is an arithmetic number, because the mean of its divisors is an integer number (21295315).

Almost surely, 2^42590629 is an apocalyptic number.

It is an amenable number.

42590629 is a deficient number, since it is larger than the sum of its proper divisors (1).

42590629 is an equidigital number, since it uses as much as digits as its factorization.

42590629 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 42590629 is about 6526.1496305249. The cubic root of 42590629 is about 349.2244842736.

The spelling of 42590629 in words is "forty-two million, five hundred ninety thousand, six hundred twenty-nine".