42140254 has 16 divisors (see below), whose sum is σ = 68841360. Its totient is φ = 19229760.

The previous prime is 42140243. The next prime is 42140257. The reversal of 42140254 is 45204124.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42140257) 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, 6792 + ... + 11419.

It is an arithmetic number, because the mean of its divisors is an integer number (4302585).

Almost surely, 2^42140254 is an apocalyptic number.

42140254 is a deficient number, since it is larger than the sum of its proper divisors (26701106).

42140254 is a wasteful number, since it uses less digits than its factorization.

42140254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18315.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 42140254 is about 6491.5525107635. The cubic root of 42140254 is about 347.9891604938.

Adding to 42140254 its reverse (45204124), we get a palindrome (87344378).

The spelling of 42140254 in words is "forty-two million, one hundred forty thousand, two hundred fifty-four".