7740328 has 48 divisors (see below), whose sum is σ = 15926400. Its totient is φ = 3521760.

The previous prime is 7740323. The next prime is 7740371. The reversal of 7740328 is 8230477.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a self number, because there is not a number n which added to its sum of digits gives 7740328.

It is not an unprimeable number, because it can be changed into a prime (7740323) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 131163 + ... + 131221.

It is an arithmetic number, because the mean of its divisors is an integer number (331800).

Almost surely, 2^7740328 is an apocalyptic number.

It is an amenable number.

7740328 is an abundant number, since it is smaller than the sum of its proper divisors (8186072).

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

7740328 is a wasteful number, since it uses less digits than its factorization.

7740328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142 (or 115 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 7740328 is about 2782.1444966069. The cubic root of 7740328 is about 197.8122220679.

The spelling of 7740328 in words is "seven million, seven hundred forty thousand, three hundred twenty-eight".