7140249936 has 120 divisors (see below), whose sum is σ = 20567559584. Its totient is φ = 2310716160.

The previous prime is 7140249929. The next prime is 7140249937. The reversal of 7140249936 is 6399420417.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 7140249891 and 7140249900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7140249937) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3041115 + ... + 3043461.

Almost surely, 2^7140249936 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7140249936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10283779792).

7140249936 is an abundant number, since it is smaller than the sum of its proper divisors (13427309648).

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

7140249936 is a wasteful number, since it uses less digits than its factorization.

7140249936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2969 (or 2960 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 7140249936 is about 84499.9996213018. Note that the first 3 decimals coincide. The cubic root of 7140249936 is about 1925.6224387115.

The spelling of 7140249936 in words is "seven billion, one hundred forty million, two hundred forty-nine thousand, nine hundred thirty-six".