140255442 has 16 divisors (see below), whose sum is σ = 311678880. Its totient is φ = 46751796.

The previous prime is 140255431. The next prime is 140255471. The reversal of 140255442 is 244552041.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1298608 + ... + 1298715.

It is an arithmetic number, because the mean of its divisors is an integer number (19479930).

Almost surely, 2^140255442 is an apocalyptic number.

140255442 is an abundant number, since it is smaller than the sum of its proper divisors (171423438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140255442 is a wasteful number, since it uses less digits than its factorization.

140255442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2597334 (or 2597328 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 140255442 is about 11842.9490415183. The cubic root of 140255442 is about 519.5650233271.

The spelling of 140255442 in words is "one hundred forty million, two hundred fifty-five thousand, four hundred forty-two".