720425872 has 40 divisors (see below), whose sum is σ = 1481244480. Its totient is φ = 338701440.

The previous prime is 720425861. The next prime is 720425891. The reversal of 720425872 is 278524027.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

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, 5122 + ... + 38302.

It is an arithmetic number, because the mean of its divisors is an integer number (37031112).

Almost surely, 2^720425872 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 720425872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (740622240).

720425872 is an abundant number, since it is smaller than the sum of its proper divisors (760818608).

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

720425872 is a wasteful number, since it uses less digits than its factorization.

720425872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33271 (or 33265 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 37.

The square root of 720425872 is about 26840.7502130622. The cubic root of 720425872 is about 896.4576278892.

Adding to 720425872 its reverse (278524027), we get a palindrome (998949899).

The spelling of 720425872 in words is "seven hundred twenty million, four hundred twenty-five thousand, eight hundred seventy-two".