747078020 has 72 divisors (see below), whose sum is σ = 1719942336. Its totient is φ = 272418432.

The previous prime is 747078011. The next prime is 747078023. The reversal of 747078020 is 20870747.

It is not an unprimeable number, because it can be changed into a prime (747078023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 279209 + ... + 281871.

It is an arithmetic number, because the mean of its divisors is an integer number (23888088).

Almost surely, 2^747078020 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 747078020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (859971168).

747078020 is an abundant number, since it is smaller than the sum of its proper divisors (972864316).

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

747078020 is a wasteful number, since it uses less digits than its factorization.

747078020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2781 (or 2766 counting only the distinct ones).

The product of its (nonzero) digits is 21952, while the sum is 35.

The square root of 747078020 is about 27332.7280014272. The cubic root of 747078020 is about 907.3788518975.

The spelling of 747078020 in words is "seven hundred forty-seven million, seventy-eight thousand, twenty".