42409232 has 10 divisors (see below), whose sum is σ = 82167918. Its totient is φ = 21204608.

The previous prime is 42409229. The next prime is 42409243. The reversal of 42409232 is 23290424.

It can be written as a sum of positive squares in only one way, i.e., 38738176 + 3671056 = 6224^2 + 1916^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1325273 + ... + 1325304.

Almost surely, 2^42409232 is an apocalyptic number.

It is an amenable number.

42409232 is a deficient number, since it is larger than the sum of its proper divisors (39758686).

42409232 is a wasteful number, since it uses less digits than its factorization.

42409232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2650585 (or 2650579 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 42409232 is about 6512.2370964209. The cubic root of 42409232 is about 348.7279867745.

Adding to 42409232 its reverse (23290424), we get a palindrome (65699656).

The spelling of 42409232 in words is "forty-two million, four hundred nine thousand, two hundred thirty-two".