7200138340 has 24 divisors (see below), whose sum is σ = 15126632640. Its totient is φ = 2878847328.

The previous prime is 7200138313. The next prime is 7200138349. The reversal of 7200138340 is 438310027.

It is a super-3 number, since 3×7200138340³ (a number of 31 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7200138299 and 7200138308.

It is not an unprimeable number, because it can be changed into a prime (7200138349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25830 + ... + 122749.

It is an arithmetic number, because the mean of its divisors is an integer number (630276360).

Almost surely, 2^7200138340 is an apocalyptic number.

It is an amenable number.

7200138340 is an abundant number, since it is smaller than the sum of its proper divisors (7926494300).

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

7200138340 is a wasteful number, since it uses less digits than its factorization.

7200138340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151011 (or 151009 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 7200138340 is about 84853.6289147376. The cubic root of 7200138340 is about 1930.9911363359.

Adding to 7200138340 its reverse (438310027), we get a palindrome (7638448367).

The spelling of 7200138340 in words is "seven billion, two hundred million, one hundred thirty-eight thousand, three hundred forty".