7413256640 has 56 divisors (see below), whose sum is σ = 18691232112. Its totient is φ = 2790871040.

The previous prime is 7413256621. The next prime is 7413256649. The reversal of 7413256640 is 466523147.

It is a happy number.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 7413256594 and 7413256603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7413256649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 675926 + ... + 686805.

It is an arithmetic number, because the mean of its divisors is an integer number (333772002).

Almost surely, 2^7413256640 is an apocalyptic number.

It is an amenable number.

7413256640 is an abundant number, since it is smaller than the sum of its proper divisors (11277975472).

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

7413256640 is a wasteful number, since it uses less digits than its factorization.

7413256640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1362765 (or 1362755 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 38.

The square root of 7413256640 is about 86100.2708474253. The cubic root of 7413256640 is about 1949.8581216082.

Adding to 7413256640 its reverse (466523147), we get a palindrome (7879779787).

The spelling of 7413256640 in words is "seven billion, four hundred thirteen million, two hundred fifty-six thousand, six hundred forty".