42157468 has 6 divisors (see below), whose sum is σ = 73775576. Its totient is φ = 21078732.

The previous prime is 42157441. The next prime is 42157487. The reversal of 42157468 is 86475124.

It is a congruent number.

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, 5269680 + ... + 5269687.

Almost surely, 2^42157468 is an apocalyptic number.

It is an amenable number.

42157468 is a deficient number, since it is larger than the sum of its proper divisors (31618108).

42157468 is a wasteful number, since it uses less digits than its factorization.

42157468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10539371 (or 10539369 counting only the distinct ones).

The product of its digits is 53760, while the sum is 37.

The square root of 42157468 is about 6492.8782523624. The cubic root of 42157468 is about 348.0365377587.

The spelling of 42157468 in words is "forty-two million, one hundred fifty-seven thousand, four hundred sixty-eight".