140113440 has 72 divisors (see below), whose sum is σ = 478142028. Its totient is φ = 37363200.

The previous prime is 140113427. The next prime is 140113451. The reversal of 140113440 is 44311041.

It can be written as a sum of positive squares in 2 ways, for example, as 114832656 + 25280784 = 10716^2 + 5028^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47211 + ... + 50090.

Almost surely, 2^140113440 is an apocalyptic number.

140113440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140113440 is an abundant number, since it is smaller than the sum of its proper divisors (338028588).

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

140113440 is a wasteful number, since it uses less digits than its factorization.

140113440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97322 (or 97311 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 140113440 is about 11836.9523104556. The cubic root of 140113440 is about 519.3896191152.

Adding to 140113440 its reverse (44311041), we get a palindrome (184424481).

It can be divided in two parts, 1401 and 13440, that added together give a palindrome (14841).

The spelling of 140113440 in words is "one hundred forty million, one hundred thirteen thousand, four hundred forty".