30000481 has 4 divisors (see below), whose sum is σ = 34286272. Its totient is φ = 25714692.

The previous prime is 30000473. The next prime is 30000493. The reversal of 30000481 is 18400003.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30000481 - 2³ = 30000473 is a prime.

It is a super-2 number, since 2×30000481² = 1800057720462722, which contains 22 as substring.

It is a Duffinian number.

30000481 is a modest number, since divided by 481 gives 30 as remainder.

It is not an unprimeable number, because it can be changed into a prime (30000401) 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, 2142885 + ... + 2142898.

It is an arithmetic number, because the mean of its divisors is an integer number (8571568).

Almost surely, 2^30000481 is an apocalyptic number.

It is an amenable number.

30000481 is a deficient number, since it is larger than the sum of its proper divisors (4285791).

30000481 is an equidigital number, since it uses as much as digits as its factorization.

30000481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4285790.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 30000481 is about 5477.2694839674. The cubic root of 30000481 is about 310.7249112297.

Adding to 30000481 its reverse (18400003), we get a palindrome (48400484).

The spelling of 30000481 in words is "thirty million, four hundred eighty-one", and thus it is an aban number.