750540816 has 75 divisors (see below), whose sum is σ = 2175141133. Its totient is φ = 249851520.

The previous prime is 750540811. The next prime is 750540821. The reversal of 750540816 is 618045057.

The square root of 750540816 is 27396.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (750540811) and next prime (750540821).

It can be written as a sum of positive squares in only one way, i.e., 1971216 + 748569600 = 1404^2 + 27360^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (750540811) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 985876 + ... + 986636.

Almost surely, 2^750540816 is an apocalyptic number.

750540816 is the 27396-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 750540816

750540816 is an abundant number, since it is smaller than the sum of its proper divisors (1424600317).

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

750540816 is an frugal number, since it uses more digits than its factorization.

750540816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1542 (or 766 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The cubic root of 750540816 is about 908.7786279214.

Multiplying 750540816 by its sum of digits (36), we get a square (27019469376 = 164376²).

750540816 divided by its sum of digits (36) gives a square (20848356 = 4566²).

The spelling of 750540816 in words is "seven hundred fifty million, five hundred forty thousand, eight hundred sixteen".