140620340 has 48 divisors (see below), whose sum is σ = 348386304. Its totient is φ = 46656000.

The previous prime is 140620339. The next prime is 140620351. The reversal of 140620340 is 43026041.

It is a happy number.

140620340 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 11861 + ... + 20540.

It is an arithmetic number, because the mean of its divisors is an integer number (7258048).

Almost surely, 2^140620340 is an apocalyptic number.

140620340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140620340 is an abundant number, since it is smaller than the sum of its proper divisors (207765964).

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

140620340 is a wasteful number, since it uses less digits than its factorization.

140620340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32448 (or 32446 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 140620340 is about 11858.3447411517. The cubic root of 140620340 is about 520.0152115866.

Adding to 140620340 its reverse (43026041), we get a palindrome (183646381).

The spelling of 140620340 in words is "one hundred forty million, six hundred twenty thousand, three hundred forty".