720455274 has 96 divisors (see below), whose sum is σ = 2060712576. Its totient is φ = 176117760.

The previous prime is 720455237. The next prime is 720455299. The reversal of 720455274 is 472554027.

It is a happy number.

720455274 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8274 + ... + 38850.

It is an arithmetic number, because the mean of its divisors is an integer number (21465756).

Almost surely, 2^720455274 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 720455274, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1030356288).

720455274 is an abundant number, since it is smaller than the sum of its proper divisors (1340257302).

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

720455274 is a wasteful number, since it uses less digits than its factorization.

720455274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30620 (or 30617 counting only the distinct ones).

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

The square root of 720455274 is about 26841.2979194375. The cubic root of 720455274 is about 896.4698231242.

The spelling of 720455274 in words is "seven hundred twenty million, four hundred fifty-five thousand, two hundred seventy-four".