7247700440 has 32 divisors (see below), whose sum is σ = 17266582080. Its totient is φ = 2728545792.

The previous prime is 7247700403. The next prime is 7247700443. The reversal of 7247700440 is 440077427.

It is a self number, because there is not a number n which added to its sum of digits gives 7247700440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7247700443) 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, 5328512 + ... + 5329871.

It is an arithmetic number, because the mean of its divisors is an integer number (539580690).

Almost surely, 2^7247700440 is an apocalyptic number.

It is an amenable number.

7247700440 is an abundant number, since it is smaller than the sum of its proper divisors (10018881640).

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

7247700440 is a wasteful number, since it uses less digits than its factorization.

7247700440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10658411 (or 10658407 counting only the distinct ones).

The product of its (nonzero) digits is 43904, while the sum is 35.

The square root of 7247700440 is about 85133.4272774214. The cubic root of 7247700440 is about 1935.2336707883.

Adding to 7247700440 its reverse (440077427), we get a palindrome (7687777867).

The spelling of 7247700440 in words is "seven billion, two hundred forty-seven million, seven hundred thousand, four hundred forty".