140670344 has 16 divisors (see below), whose sum is σ = 270190620. Its totient is φ = 68619520.

The previous prime is 140670307. The next prime is 140670347. The reversal of 140670344 is 443076041.

It can be written as a sum of positive squares in 2 ways, for example, as 138532900 + 2137444 = 11770^2 + 1462^2 .

It is not an unprimeable number, because it can be changed into a prime (140670347) 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 3 ways as a sum of consecutive naturals, for example, 214109 + ... + 214764.

Almost surely, 2^140670344 is an apocalyptic number.

It is an amenable number.

140670344 is a deficient number, since it is larger than the sum of its proper divisors (129520276).

140670344 is a wasteful number, since it uses less digits than its factorization.

140670344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428920 (or 428916 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 140670344 is about 11860.4529424470. The cubic root of 140670344 is about 520.0768426875.

The spelling of 140670344 in words is "one hundred forty million, six hundred seventy thousand, three hundred forty-four".