42411869 has 2 divisors, whose sum is σ = 42411870. Its totient is φ = 42411868.

The previous prime is 42411847. The next prime is 42411883. The reversal of 42411869 is 96811424.

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., 33200644 + 9211225 = 5762^2 + 3035^2 .

It is a cyclic number.

It is not a de Polignac number, because 42411869 - 2¹⁶ = 42346333 is a prime.

It is a super-2 number, since 2×42411869² = 3597533264146322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42411829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21205934 + 21205935.

It is an arithmetic number, because the mean of its divisors is an integer number (21205935).

Almost surely, 2^42411869 is an apocalyptic number.

It is an amenable number.

42411869 is a deficient number, since it is larger than the sum of its proper divisors (1).

42411869 is an equidigital number, since it uses as much as digits as its factorization.

42411869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13824, while the sum is 35.

The square root of 42411869 is about 6512.4395582608. The cubic root of 42411869 is about 348.7352145768.

The spelling of 42411869 in words is "forty-two million, four hundred eleven thousand, eight hundred sixty-nine".