42117448 has 16 divisors (see below), whose sum is σ = 79475580. Its totient is φ = 20923968.

The previous prime is 42117409. The next prime is 42117469. The reversal of 42117448 is 84471124.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 42016324 + 101124 = 6482^2 + 318^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15511 + ... + 18022.

Almost surely, 2^42117448 is an apocalyptic number.

It is an amenable number.

42117448 is a deficient number, since it is larger than the sum of its proper divisors (37358132).

42117448 is a wasteful number, since it uses less digits than its factorization.

42117448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33696 (or 33692 counting only the distinct ones).

The product of its digits is 7168, while the sum is 31.

The square root of 42117448 is about 6489.7956824541. The cubic root of 42117448 is about 347.9263727620.

The spelling of 42117448 in words is "forty-two million, one hundred seventeen thousand, four hundred forty-eight".