720919052 has 48 divisors (see below), whose sum is σ = 1528800000. Its totient is φ = 290568384.

The previous prime is 720919039. The next prime is 720919057. The reversal of 720919052 is 250919027.

It is not an unprimeable number, because it can be changed into a prime (720919057) 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, 69074 + ... + 78822.

It is an arithmetic number, because the mean of its divisors is an integer number (31850000).

Almost surely, 2^720919052 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 720919052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (764400000).

720919052 is an abundant number, since it is smaller than the sum of its proper divisors (807880948).

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

720919052 is a wasteful number, since it uses less digits than its factorization.

720919052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9918 (or 9916 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 35.

The square root of 720919052 is about 26849.9357913571. The cubic root of 720919052 is about 896.6621430899.

The spelling of 720919052 in words is "seven hundred twenty million, nine hundred nineteen thousand, fifty-two".