42140351 has 8 divisors (see below), whose sum is σ = 46174800. Its totient is φ = 38139840.

The previous prime is 42140327. The next prime is 42140383. The reversal of 42140351 is 15304124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42140351 - 2¹⁰ = 42139327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42140321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5846 + ... + 10883.

It is an arithmetic number, because the mean of its divisors is an integer number (5771850).

Almost surely, 2^42140351 is an apocalyptic number.

42140351 is a deficient number, since it is larger than the sum of its proper divisors (4034449).

42140351 is a wasteful number, since it uses less digits than its factorization.

42140351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16969.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 42140351 is about 6491.5599820074. The cubic root of 42140351 is about 347.9894274984.

Adding to 42140351 its reverse (15304124), we get a palindrome (57444475).

The spelling of 42140351 in words is "forty-two million, one hundred forty thousand, three hundred fifty-one".