30480031 has 8 divisors (see below), whose sum is σ = 32326560. Its totient is φ = 28639488.

The previous prime is 30480029. The next prime is 30480061. The reversal of 30480031 is 13008403.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30480031 - 2¹ = 30480029 is a prime.

It is a super-2 number, since 2×30480031² = 1858064579521922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30479990 and 30480008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30480001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13195 + ... + 15331.

It is an arithmetic number, because the mean of its divisors is an integer number (4040820).

Almost surely, 2^30480031 is an apocalyptic number.

30480031 is a deficient number, since it is larger than the sum of its proper divisors (1846529).

30480031 is a wasteful number, since it uses less digits than its factorization.

30480031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2993.

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

The square root of 30480031 is about 5520.8723042650. The cubic root of 30480031 is about 312.3717865501.

Adding to 30480031 its reverse (13008403), we get a palindrome (43488434).

The spelling of 30480031 in words is "thirty million, four hundred eighty thousand, thirty-one".