42158384 has 20 divisors (see below), whose sum is σ = 81848184. Its totient is φ = 21036288.

The previous prime is 42158377. The next prime is 42158393. The reversal of 42158384 is 48385124.

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, 6344 + ... + 11160.

Almost surely, 2^42158384 is an apocalyptic number.

It is an amenable number.

42158384 is a deficient number, since it is larger than the sum of its proper divisors (39689800).

42158384 is a wasteful number, since it uses less digits than its factorization.

42158384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5372 (or 5366 counting only the distinct ones).

The product of its digits is 30720, while the sum is 35.

The square root of 42158384 is about 6492.9487908038. The cubic root of 42158384 is about 348.0390584601.

It can be divided in two parts, 42 and 158384, that multiplied together give a triangular number (6652128 = T₃₆₄₇).

The spelling of 42158384 in words is "forty-two million, one hundred fifty-eight thousand, three hundred eighty-four".