140451242440 has 32 divisors (see below), whose sum is σ = 326209340160. Its totient is φ = 54368222400.

The previous prime is 140451242431. The next prime is 140451242443. The reversal of 140451242440 is 44242154041.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (140451242443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56632326 + ... + 56634805.

It is an arithmetic number, because the mean of its divisors is an integer number (10194041880).

Almost surely, 2^140451242440 is an apocalyptic number.

140451242440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140451242440 is an abundant number, since it is smaller than the sum of its proper divisors (185758097720).

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

140451242440 is a wasteful number, since it uses less digits than its factorization.

140451242440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113267173 (or 113267169 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 31.

Adding to 140451242440 its reverse (44242154041), we get a palindrome (184693396481).

The spelling of 140451242440 in words is "one hundred forty billion, four hundred fifty-one million, two hundred forty-two thousand, four hundred forty".