730020001 has 16 divisors (see below), whose sum is σ = 788855760. Its totient is φ = 673044480.

The previous prime is 730019993. The next prime is 730020017. The reversal of 730020001 is 100020037.

It can be written as a sum of positive squares in 8 ways, for example, as 7700625 + 722319376 = 2775^2 + 26876^2 .

It is a cyclic number.

It is not a de Polignac number, because 730020001 - 2³ = 730019993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (730020041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 277645 + ... + 280261.

It is an arithmetic number, because the mean of its divisors is an integer number (49303485).

Almost surely, 2^730020001 is an apocalyptic number.

It is an amenable number.

730020001 is a deficient number, since it is larger than the sum of its proper divisors (58835759).

730020001 is a wasteful number, since it uses less digits than its factorization.

730020001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2964.

The product of its (nonzero) digits is 42, while the sum is 13.

The square root of 730020001 is about 27018.8823047883. The cubic root of 730020001 is about 900.4195578800.

Adding to 730020001 its reverse (100020037), we get a palindrome (830040038).

The spelling of 730020001 in words is "seven hundred thirty million, twenty thousand, one".