730021552 has 20 divisors (see below), whose sum is σ = 1523218480. Its totient is φ = 336932928.

The previous prime is 730021549. The next prime is 730021559. The reversal of 730021552 is 255120037.

730021552 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (730021559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1754652 + ... + 1755067.

It is an arithmetic number, because the mean of its divisors is an integer number (76160924).

Almost surely, 2^730021552 is an apocalyptic number.

It is an amenable number.

730021552 is an abundant number, since it is smaller than the sum of its proper divisors (793196928).

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

730021552 is a wasteful number, since it uses less digits than its factorization.

730021552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3509740 (or 3509734 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 730021552 is about 27018.9110069225. The cubic root of 730021552 is about 900.4201955565.

Adding to 730021552 its reverse (255120037), we get a palindrome (985141589).

The spelling of 730021552 in words is "seven hundred thirty million, twenty-one thousand, five hundred fifty-two".