30381485 has 16 divisors (see below), whose sum is σ = 37454400. Its totient is φ = 23650176.

The previous prime is 30381479. The next prime is 30381487. The reversal of 30381485 is 58418303.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 30381485 - 2⁴ = 30381469 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30381487) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29306 + ... + 30324.

It is an arithmetic number, because the mean of its divisors is an integer number (2340900).

Almost surely, 2^30381485 is an apocalyptic number.

It is an amenable number.

30381485 is a deficient number, since it is larger than the sum of its proper divisors (7072915).

30381485 is a wasteful number, since it uses less digits than its factorization.

30381485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1180.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 30381485 is about 5511.9402210111. The cubic root of 30381485 is about 312.0347765586.

Adding to 30381485 its reverse (58418303), we get a palindrome (88799788).

The spelling of 30381485 in words is "thirty million, three hundred eighty-one thousand, four hundred eighty-five".