140040320 has 64 divisors (see below), whose sum is σ = 382622400. Its totient is φ = 48012288.

The previous prime is 140040311. The next prime is 140040331. The reversal of 140040320 is 23040041.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×140040320² = 39222582451404800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 140040295 and 140040304.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11150 + ... + 20109.

It is an arithmetic number, because the mean of its divisors is an integer number (5978475).

Almost surely, 2^140040320 is an apocalyptic number.

140040320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140040320 is an abundant number, since it is smaller than the sum of its proper divisors (242582080).

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

140040320 is an equidigital number, since it uses as much as digits as its factorization.

140040320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31285 (or 31273 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 140040320 is about 11833.8632745186. The cubic root of 140040320 is about 519.2992533439.

Adding to 140040320 its reverse (23040041), we get a palindrome (163080361).

The spelling of 140040320 in words is "one hundred forty million, forty thousand, three hundred twenty".