7340668128 has 36 divisors (see below), whose sum is σ = 20875025808. Its totient is φ = 2446889280.

The previous prime is 7340668099. The next prime is 7340668129. The reversal of 7340668128 is 8218660437.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7340668129) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12743928 + ... + 12744503.

It is an arithmetic number, because the mean of its divisors is an integer number (579861828).

Almost surely, 2^7340668128 is an apocalyptic number.

It is an amenable number.

7340668128 is an abundant number, since it is smaller than the sum of its proper divisors (13534357680).

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

7340668128 is a wasteful number, since it uses less digits than its factorization.

7340668128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25488447 (or 25488436 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The square root of 7340668128 is about 85677.6991287698. The cubic root of 7340668128 is about 1943.4730828193.

The spelling of 7340668128 in words is "seven billion, three hundred forty million, six hundred sixty-eight thousand, one hundred twenty-eight".