42672293 has 2 divisors, whose sum is σ = 42672294. Its totient is φ = 42672292.

The previous prime is 42672269. The next prime is 42672299. The reversal of 42672293 is 39227624.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23020804 + 19651489 = 4798^2 + 4433^2 .

It is a cyclic number.

It is not a de Polignac number, because 42672293 - 2⁸ = 42672037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42672299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21336146 + 21336147.

It is an arithmetic number, because the mean of its divisors is an integer number (21336147).

Almost surely, 2^42672293 is an apocalyptic number.

It is an amenable number.

42672293 is a deficient number, since it is larger than the sum of its proper divisors (1).

42672293 is an equidigital number, since it uses as much as digits as its factorization.

42672293 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 35.

The square root of 42672293 is about 6532.4033096556. The cubic root of 42672293 is about 349.4475447660.

The spelling of 42672293 in words is "forty-two million, six hundred seventy-two thousand, two hundred ninety-three".