748006728 has 64 divisors (see below), whose sum is σ = 2144271360. Its totient is φ = 213005376.

The previous prime is 748006643. The next prime is 748006729. The reversal of 748006728 is 827600847.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 748006728.

It is not an unprimeable number, because it can be changed into a prime (748006729) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44325 + ... + 58827.

It is an arithmetic number, because the mean of its divisors is an integer number (33504240).

Almost surely, 2^748006728 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 748006728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1072135680).

748006728 is an abundant number, since it is smaller than the sum of its proper divisors (1396264632).

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

748006728 is a wasteful number, since it uses less digits than its factorization.

748006728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14826 (or 14822 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 42.

The square root of 748006728 is about 27349.7116620998. The cubic root of 748006728 is about 907.7546899531.

The spelling of 748006728 in words is "seven hundred forty-eight million, six thousand, seven hundred twenty-eight".