720029808 has 120 divisors (see below), whose sum is σ = 2101996416. Its totient is φ = 229824000.

The previous prime is 720029773. The next prime is 720029809. The reversal of 720029808 is 808920027.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720029809) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 450066 + ... + 451662.

Almost surely, 2^720029808 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 720029808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1050998208).

720029808 is an abundant number, since it is smaller than the sum of its proper divisors (1381966608).

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

720029808 is a wasteful number, since it uses less digits than its factorization.

720029808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1743 (or 1734 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 720029808 is about 26833.3711635344. The cubic root of 720029808 is about 896.2933178178.

It can be divided in two parts, 72002 and 9808, that added together give a triangular number (81810 = T₄₀₄).

The spelling of 720029808 in words is "seven hundred twenty million, twenty-nine thousand, eight hundred eight".