140245440 has 112 divisors (see below), whose sum is σ = 448909440. Its totient is φ = 37094400.

The previous prime is 140245433. The next prime is 140245471. The reversal of 140245440 is 44542041.

It is a happy number.

140245440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 140245440.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132915 + ... + 133965.

It is an arithmetic number, because the mean of its divisors is an integer number (4008120).

Almost surely, 2^140245440 is an apocalyptic number.

140245440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140245440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224454720).

140245440 is an abundant number, since it is smaller than the sum of its proper divisors (308664000).

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

140245440 is a wasteful number, since it uses less digits than its factorization.

140245440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1210 (or 1200 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 140245440 is about 11842.5267574112. The cubic root of 140245440 is about 519.5526724982.

Adding to 140245440 its reverse (44542041), we get a palindrome (184787481).

The spelling of 140245440 in words is "one hundred forty million, two hundred forty-five thousand, four hundred forty".