42369529 has 6 divisors (see below), whose sum is σ = 43781370. Its totient is φ = 41001840.

The previous prime is 42369469. The next prime is 42369533. The reversal of 42369529 is 92596324.

It can be written as a sum of positive squares in only one way, i.e., 35426304 + 6943225 = 5952^2 + 2635^2 .

It is not a de Polignac number, because 42369529 - 2⁷ = 42369401 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42369491 and 42369500.

It is not an unprimeable number, because it can be changed into a prime (42369589) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21084 + ... + 23005.

It is an arithmetic number, because the mean of its divisors is an integer number (7296895).

Almost surely, 2^42369529 is an apocalyptic number.

It is an amenable number.

42369529 is a deficient number, since it is larger than the sum of its proper divisors (1411841).

42369529 is an equidigital number, since it uses as much as digits as its factorization.

42369529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44151 (or 44120 counting only the distinct ones).

The product of its digits is 116640, while the sum is 40.

The square root of 42369529 is about 6509.1880446028. The cubic root of 42369529 is about 348.6191278497.

The spelling of 42369529 in words is "forty-two million, three hundred sixty-nine thousand, five hundred twenty-nine".