7261400140 has 12 divisors (see below), whose sum is σ = 15248940336. Its totient is φ = 2904560048.

The previous prime is 7261400137. The next prime is 7261400143. The reversal of 7261400140 is 410041627.

It is an interprime number because it is at equal distance from previous prime (7261400137) and next prime (7261400143).

It is not an unprimeable number, because it can be changed into a prime (7261400143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181534984 + ... + 181535023.

It is an arithmetic number, because the mean of its divisors is an integer number (1270745028).

Almost surely, 2^7261400140 is an apocalyptic number.

It is an amenable number.

7261400140 is an abundant number, since it is smaller than the sum of its proper divisors (7987540196).

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

7261400140 is a wasteful number, since it uses less digits than its factorization.

7261400140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363070016 (or 363070014 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 7261400140 is about 85213.8494612231. The cubic root of 7261400140 is about 1936.4522381550.

Adding to 7261400140 its reverse (410041627), we get a palindrome (7671441767).

The spelling of 7261400140 in words is "seven billion, two hundred sixty-one million, four hundred thousand, one hundred forty".