720534452 has 24 divisors (see below), whose sum is σ = 1380939840. Its totient is φ = 326236160.

The previous prime is 720534421. The next prime is 720534481. The reversal of 720534452 is 254435027.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20552 + ... + 43167.

It is an arithmetic number, because the mean of its divisors is an integer number (57539160).

Almost surely, 2^720534452 is an apocalyptic number.

It is an amenable number.

720534452 is a deficient number, since it is larger than the sum of its proper divisors (660405388).

720534452 is a wasteful number, since it uses less digits than its factorization.

720534452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63991 (or 63989 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 32.

The square root of 720534452 is about 26842.7728075920. The cubic root of 720534452 is about 896.5026625847.

Adding to 720534452 its reverse (254435027), we get a palindrome (974969479).

The spelling of 720534452 in words is "seven hundred twenty million, five hundred thirty-four thousand, four hundred fifty-two".