140307790 has 32 divisors (see below), whose sum is σ = 289865664. Its totient is φ = 47900160.

The previous prime is 140307779. The next prime is 140307803. The reversal of 140307790 is 97703041.

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, 12712 + ... + 21028.

It is an arithmetic number, because the mean of its divisors is an integer number (9058302).

Almost surely, 2^140307790 is an apocalyptic number.

140307790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140307790 is an abundant number, since it is smaller than the sum of its proper divisors (149557874).

140307790 is a wasteful number, since it uses less digits than its factorization.

140307790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8572.

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 140307790 is about 11845.1589267515. The cubic root of 140307790 is about 519.6296549412.

The spelling of 140307790 in words is "one hundred forty million, three hundred seven thousand, seven hundred ninety".