730020000 has 240 divisors, whose sum is σ = 2503448640. Its totient is φ = 186208000.

The previous prime is 730019993. The next prime is 730020017. The reversal of 730020000 is 20037.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a Saint-Exupery number, since it is equal to the product of the sides of a Pythagorean triangle: 1150 × 690 × 920.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 31739989 + ... + 31740011.

It is an arithmetic number, because the mean of its divisors is an integer number (10431036).

Almost surely, 2^730020000 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 730020000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1251724320).

730020000 is an abundant number, since it is smaller than the sum of its proper divisors (1773428640).

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

730020000 is an frugal number, since it uses more digits than its factorization.

730020000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102 (or 33 counting only the distinct ones).

The product of its (nonzero) digits is 42, while the sum is 12.

The square root of 730020000 is about 27018.8822862827. The cubic root of 730020000 is about 900.4195574688.

Adding to 730020000 its reverse (20037), we get a palindrome (730040037).

The spelling of 730020000 in words is "seven hundred thirty million, twenty thousand".