140427278 has 8 divisors (see below), whose sum is σ = 210830880. Its totient is φ = 70150320.

The previous prime is 140427277. The next prime is 140427281. The reversal of 140427278 is 872724041.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140427277) 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, 28838 + ... + 33353.

It is an arithmetic number, because the mean of its divisors is an integer number (26353860).

Almost surely, 2^140427278 is an apocalyptic number.

140427278 is a deficient number, since it is larger than the sum of its proper divisors (70403602).

140427278 is a wasteful number, since it uses less digits than its factorization.

140427278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63322.

The product of its (nonzero) digits is 25088, while the sum is 35.

The square root of 140427278 is about 11850.2016016606. The cubic root of 140427278 is about 519.7771209541. Note that the first 3 decimals are identical.

It can be divided in two parts, 1404 and 27278, that added together give a palindrome (28682).

The spelling of 140427278 in words is "one hundred forty million, four hundred twenty-seven thousand, two hundred seventy-eight".