42140344 has 16 divisors (see below), whose sum is σ = 80851320. Its totient is φ = 20580000.

The previous prime is 42140327. The next prime is 42140383. The reversal of 42140344 is 44304124.

It is a congruent number.

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, 60907 + ... + 61594.

Almost surely, 2^42140344 is an apocalyptic number.

It is an amenable number.

42140344 is a deficient number, since it is larger than the sum of its proper divisors (38710976).

42140344 is a wasteful number, since it uses less digits than its factorization.

42140344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122550 (or 122546 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 42140344 is about 6491.5594428458. The cubic root of 42140344 is about 347.9894082301.

Adding to 42140344 its reverse (44304124), we get a palindrome (86444468).

The spelling of 42140344 in words is "forty-two million, one hundred forty thousand, three hundred forty-four".