7730448 has 60 divisors (see below), whose sum is σ = 21967344. Its totient is φ = 2342560.

The previous prime is 7730431. The next prime is 7730453. The reversal of 7730448 is 8440377.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a nialpdrome in base 11.

It is a zygodrome in base 11.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 702763 + ... + 702773.

Almost surely, 2^7730448 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7730448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10983672).

7730448 is an abundant number, since it is smaller than the sum of its proper divisors (14236896).

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

7730448 is an frugal number, since it uses more digits than its factorization.

7730448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66 (or 16 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 33.

The square root of 7730448 is about 2780.3683209244. The cubic root of 7730448 is about 197.7280216357.

Multiplying 7730448 by its sum of digits (33), we get a square (255104784 = 15972²).

7730448 divided by its sum of digits (33) gives a 4-th power (234256 = 22⁴).

The spelling of 7730448 in words is "seven million, seven hundred thirty thousand, four hundred forty-eight".