42389744 has 20 divisors (see below), whose sum is σ = 84041496. Its totient is φ = 20701632.

The previous prime is 42389717. The next prime is 42389749. The reversal of 42389744 is 44798324.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42389749) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 30119 + ... + 31494.

Almost surely, 2^42389744 is an apocalyptic number.

It is an amenable number.

42389744 is a deficient number, since it is larger than the sum of its proper divisors (41651752).

42389744 is a wasteful number, since it uses less digits than its factorization.

42389744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61664 (or 61658 counting only the distinct ones).

The product of its digits is 193536, while the sum is 41.

The square root of 42389744 is about 6510.7406644713. The cubic root of 42389744 is about 348.6745624615.

The spelling of 42389744 in words is "forty-two million, three hundred eighty-nine thousand, seven hundred forty-four".