42672269 has 2 divisors, whose sum is σ = 42672270. Its totient is φ = 42672268.

The previous prime is 42672257. The next prime is 42672293. The reversal of 42672269 is 96227624.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39564100 + 3108169 = 6290^2 + 1763^2 .

It is a cyclic number.

It is not a de Polignac number, because 42672269 - 2¹² = 42668173 is a prime.

It is a super-2 number, since 2×42672269² = 3641845083216722, which contains 22 as substring.

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, 21336134 + 21336135.

It is an arithmetic number, because the mean of its divisors is an integer number (21336135).

Almost surely, 2^42672269 is an apocalyptic number.

It is an amenable number.

42672269 is a deficient number, since it is larger than the sum of its proper divisors (1).

42672269 is an equidigital number, since it uses as much as digits as its factorization.

42672269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 38.

The square root of 42672269 is about 6532.4014726592. The cubic root of 42672269 is about 349.4474792532.

The spelling of 42672269 in words is "forty-two million, six hundred seventy-two thousand, two hundred sixty-nine".