720452754 has 144 divisors (see below), whose sum is σ = 1928579328. Its totient is φ = 190294272.

The previous prime is 720452753. The next prime is 720452767. The reversal of 720452754 is 457254027.

It is a happy number.

720452754 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720452753) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2137674 + ... + 2138010.

It is an arithmetic number, because the mean of its divisors is an integer number (13392912).

Almost surely, 2^720452754 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 720452754, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (964289664).

720452754 is an abundant number, since it is smaller than the sum of its proper divisors (1208126574).

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

720452754 is a wasteful number, since it uses less digits than its factorization.

720452754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437 (or 415 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 36.

The square root of 720452754 is about 26841.2509768081. The cubic root of 720452754 is about 896.4687779025.

The spelling of 720452754 in words is "seven hundred twenty million, four hundred fifty-two thousand, seven hundred fifty-four".