140323340 has 24 divisors (see below), whose sum is σ = 297600912. Its totient is φ = 55572800.

The previous prime is 140323333. The next prime is 140323343. The reversal of 140323340 is 43323041.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (140323343) 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 7 ways as a sum of consecutive naturals, for example, 32714 + ... + 36753.

It is an arithmetic number, because the mean of its divisors is an integer number (12400038).

Almost surely, 2^140323340 is an apocalyptic number.

140323340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140323340 is an abundant number, since it is smaller than the sum of its proper divisors (157277572).

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

140323340 is a wasteful number, since it uses less digits than its factorization.

140323340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69577 (or 69575 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 140323340 is about 11845.8152948626. The cubic root of 140323340 is about 519.6488506980.

Adding to 140323340 its reverse (43323041), we get a palindrome (183646381).

The spelling of 140323340 in words is "one hundred forty million, three hundred twenty-three thousand, three hundred forty".