42480169 has 2 divisors, whose sum is σ = 42480170. Its totient is φ = 42480168.

The previous prime is 42480167. The next prime is 42480197. The reversal of 42480169 is 96108424.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39538944 + 2941225 = 6288^2 + 1715^2 .

It is a cyclic number.

It is not a de Polignac number, because 42480169 - 2¹ = 42480167 is a prime.

It is a super-2 number, since 2×42480169² = 3609129516537122, which contains 22 as substring.

Together with 42480167, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (42480167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21240084 + 21240085.

It is an arithmetic number, because the mean of its divisors is an integer number (21240085).

Almost surely, 2^42480169 is an apocalyptic number.

It is an amenable number.

42480169 is a deficient number, since it is larger than the sum of its proper divisors (1).

42480169 is an equidigital number, since it uses as much as digits as its factorization.

42480169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 42480169 is about 6517.6812594664. The cubic root of 42480169 is about 348.9223150381.

The spelling of 42480169 in words is "forty-two million, four hundred eighty thousand, one hundred sixty-nine".