140728370 has 16 divisors (see below), whose sum is σ = 253532160. Its totient is φ = 56242224.

The previous prime is 140728361. The next prime is 140728373. The reversal of 140728370 is 73827041.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (140728373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7289 + ... + 18291.

It is an arithmetic number, because the mean of its divisors is an integer number (15845760).

Almost surely, 2^140728370 is an apocalyptic number.

140728370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140728370 is a deficient number, since it is larger than the sum of its proper divisors (112803790).

140728370 is a wasteful number, since it uses less digits than its factorization.

140728370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12289.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 140728370 is about 11862.8988868657. The cubic root of 140728370 is about 520.1483427860.

The spelling of 140728370 in words is "one hundred forty million, seven hundred twenty-eight thousand, three hundred seventy".