30403801 has 2 divisors, whose sum is σ = 30403802. Its totient is φ = 30403800.

The previous prime is 30403799. The next prime is 30403811. The reversal of 30403801 is 10830403.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17808400 + 12595401 = 4220^2 + 3549^2 .

It is an emirp because it is prime and its reverse (10830403) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30403801 - 2¹ = 30403799 is a prime.

It is a super-2 number, since 2×30403801² = 1848782230495202, which contains 22 as substring.

Together with 30403799, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (30403811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15201900 + 15201901.

It is an arithmetic number, because the mean of its divisors is an integer number (15201901).

Almost surely, 2^30403801 is an apocalyptic number.

It is an amenable number.

30403801 is a deficient number, since it is larger than the sum of its proper divisors (1).

30403801 is an equidigital number, since it uses as much as digits as its factorization.

30403801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 30403801 is about 5513.9641819656. The cubic root of 30403801 is about 312.1111571112. Note that the first 4 decimals are identical.

The spelling of 30403801 in words is "thirty million, four hundred three thousand, eight hundred one".