42478826 has 24 divisors (see below), whose sum is σ = 69690060. Its totient is φ = 19408896.

The previous prime is 42478771. The next prime is 42478831. The reversal of 42478826 is 62887424.

It can be written as a sum of positive squares in 6 ways, for example, as 15594601 + 26884225 = 3949^2 + 5185^2 .

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 in 11 ways as a sum of consecutive naturals, for example, 36266 + ... + 37418.

Almost surely, 2^42478826 is an apocalyptic number.

42478826 is a deficient number, since it is larger than the sum of its proper divisors (27211234).

42478826 is a wasteful number, since it uses less digits than its factorization.

42478826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1290 (or 1277 counting only the distinct ones).

The product of its digits is 172032, while the sum is 41.

The square root of 42478826 is about 6517.5782312144. The cubic root of 42478826 is about 348.9186379686.

The spelling of 42478826 in words is "forty-two million, four hundred seventy-eight thousand, eight hundred twenty-six".