140966640 has 60 divisors (see below), whose sum is σ = 473415384. Its totient is φ = 37590912.

The previous prime is 140966629. The next prime is 140966647. The reversal of 140966640 is 46669041.

140966640 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 140966595 and 140966604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140966647) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 97174 + ... + 98613.

Almost surely, 2^140966640 is an apocalyptic number.

140966640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140966640 is an abundant number, since it is smaller than the sum of its proper divisors (332448744).

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

140966640 is a wasteful number, since it uses less digits than its factorization.

140966640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195806 (or 195797 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 140966640 is about 11872.9372945367. The cubic root of 140966640 is about 520.4417350976.

It can be divided in two parts, 14096 and 6640, that added together give a 4-th power (20736 = 12⁴).

The spelling of 140966640 in words is "one hundred forty million, nine hundred sixty-six thousand, six hundred forty".