140842240 has 144 divisors (see below), whose sum is σ = 420900480. Its totient is φ = 43868160.

The previous prime is 140842237. The next prime is 140842277. The reversal of 140842240 is 42248041.

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, 97846 + ... + 99274.

It is an arithmetic number, because the mean of its divisors is an integer number (2922920).

Almost surely, 2^140842240 is an apocalyptic number.

140842240 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 140842240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (210450240).

140842240 is an abundant number, since it is smaller than the sum of its proper divisors (280058240).

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

140842240 is a wasteful number, since it uses less digits than its factorization.

140842240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1468 (or 1454 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 25.

The square root of 140842240 is about 11867.6973335184. The cubic root of 140842240 is about 520.2885971969.

The spelling of 140842240 in words is "one hundred forty million, eight hundred forty-two thousand, two hundred forty".