140455240 has 32 divisors (see below), whose sum is σ = 317866680. Its totient is φ = 55854592.

The previous prime is 140455213. The next prime is 140455267. The reversal of 140455240 is 42554041.

It is a happy number.

140455240 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (140455213) and next prime (140455267).

It can be written as a sum of positive squares in 4 ways, for example, as 132848676 + 7606564 = 11526^2 + 2758^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3229 + ... + 17068.

Almost surely, 2^140455240 is an apocalyptic number.

140455240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140455240 is an abundant number, since it is smaller than the sum of its proper divisors (177411440).

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

140455240 is a wasteful number, since it uses less digits than its factorization.

140455240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20481 (or 20477 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 140455240 is about 11851.3813540870. The cubic root of 140455240 is about 519.8116181532.

It can be divided in two parts, 1404 and 55240, that added together give a square (56644 = 238²).

The spelling of 140455240 in words is "one hundred forty million, four hundred fifty-five thousand, two hundred forty".