42122404 has 6 divisors (see below), whose sum is σ = 73714214. Its totient is φ = 21061200.

The previous prime is 42122393. The next prime is 42122429. The reversal of 42122404 is 40422124.

It can be written as a sum of positive squares in only one way, i.e., 42120100 + 2304 = 6490^2 + 48^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5265297 + ... + 5265304.

Almost surely, 2^42122404 is an apocalyptic number.

It is an amenable number.

42122404 is a deficient number, since it is larger than the sum of its proper divisors (31591810).

42122404 is a wasteful number, since it uses less digits than its factorization.

42122404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10530605 (or 10530603 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 42122404 is about 6490.1775014247. The cubic root of 42122404 is about 347.9400191687.

Adding to 42122404 its reverse (40422124), we get a palindrome (82544528).

The spelling of 42122404 in words is "forty-two million, one hundred twenty-two thousand, four hundred four".