9940140000 has 900 divisors, whose sum is σ = 42999092136. Its totient is φ = 2173248000.

The previous prime is 9940139971. The next prime is 9940140011. The reversal of 9940140000 is 410499.

It is a tau number, because it is divible by the number of its divisors (900).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 149 ways as a sum of consecutive naturals, for example, 432179989 + ... + 432180011.

Almost surely, 2^9940140000 is an apocalyptic number.

9940140000 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9940140000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21499546068).

9940140000 is an abundant number, since it is smaller than the sum of its proper divisors (33058952136).

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

9940140000 is an equidigital number, since it uses as much as digits as its factorization.

9940140000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87 (or 40 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 9940140000 is about 99700.2507519414. The cubic root of 9940140000 is about 2150.1272684713.

Adding to 9940140000 its reverse (410499), we get a palindrome (9940550499).

The spelling of 9940140000 in words is "nine billion, nine hundred forty million, one hundred forty thousand".