140307916 has 48 divisors (see below), whose sum is σ = 294739200. Its totient is φ = 57169728.

The previous prime is 140307911. The next prime is 140307929. The reversal of 140307916 is 619703041.

It is a happy number.

It is a super-2 number, since 2×140307916² = 39372622584526112, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (140307911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53115 + ... + 55693.

It is an arithmetic number, because the mean of its divisors is an integer number (6140400).

Almost surely, 2^140307916 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140307916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147369600).

140307916 is an abundant number, since it is smaller than the sum of its proper divisors (154431284).

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

140307916 is a wasteful number, since it uses less digits than its factorization.

140307916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2686 (or 2684 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 140307916 is about 11845.1642453788. The cubic root of 140307916 is about 519.6298104880.

The spelling of 140307916 in words is "one hundred forty million, three hundred seven thousand, nine hundred sixteen".