140806724 has 6 divisors (see below), whose sum is σ = 246411774. Its totient is φ = 70403360.

The previous prime is 140806723. The next prime is 140806741. The reversal of 140806724 is 427608041.

It can be written as a sum of positive squares in only one way, i.e., 107536900 + 33269824 = 10370^2 + 5768^2 .

It is a super-2 number, since 2×140806724² = 39653067047224352, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (140806723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17600837 + ... + 17600844.

It is an arithmetic number, because the mean of its divisors is an integer number (41068629).

Almost surely, 2^140806724 is an apocalyptic number.

It is an amenable number.

140806724 is a deficient number, since it is larger than the sum of its proper divisors (105605050).

140806724 is a wasteful number, since it uses less digits than its factorization.

140806724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35201685 (or 35201683 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 140806724 is about 11866.2009084627. The cubic root of 140806724 is about 520.2448600262.

The spelling of 140806724 in words is "one hundred forty million, eight hundred six thousand, seven hundred twenty-four".