42770269 has 2 divisors, whose sum is σ = 42770270. Its totient is φ = 42770268.

The previous prime is 42770227. The next prime is 42770279. The reversal of 42770269 is 96207724.

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., 40475044 + 2295225 = 6362^2 + 1515^2 .

It is a cyclic number.

It is not a de Polignac number, because 42770269 - 2¹³ = 42762077 is a prime.

It is a super-2 number, since 2×42770269² = 3658591820664722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42770209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21385134 + 21385135.

It is an arithmetic number, because the mean of its divisors is an integer number (21385135).

Almost surely, 2^42770269 is an apocalyptic number.

It is an amenable number.

42770269 is a deficient number, since it is larger than the sum of its proper divisors (1).

42770269 is an equidigital number, since it uses as much as digits as its factorization.

42770269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 42770269 is about 6539.8982407986. The cubic root of 42770269 is about 349.7147853290.

The spelling of 42770269 in words is "forty-two million, seven hundred seventy thousand, two hundred sixty-nine".