140780240 has 40 divisors (see below), whose sum is σ = 341549568. Its totient is φ = 53863040.

The previous prime is 140780197. The next prime is 140780249. The reversal of 140780240 is 42087041.

140780240 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140780249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36416 + ... + 40095.

Almost surely, 2^140780240 is an apocalyptic number.

140780240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140780240 is an abundant number, since it is smaller than the sum of its proper divisors (200769328).

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

140780240 is a wasteful number, since it uses less digits than its factorization.

140780240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76547 (or 76541 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 140780240 is about 11865.0849133076. The cubic root of 140780240 is about 520.2122407772.

The spelling of 140780240 in words is "one hundred forty million, seven hundred eighty thousand, two hundred forty".