30235381 has 8 divisors (see below), whose sum is σ = 33106464. Its totient is φ = 27384720.

The previous prime is 30235379. The next prime is 30235391. The reversal of 30235381 is 18353203.

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

It is not a de Polignac number, because 30235381 - 2¹ = 30235379 is a prime.

It is a super-2 number, since 2×30235381² = 1828356528430322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30235301) 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, 1915 + ... + 8008.

It is an arithmetic number, because the mean of its divisors is an integer number (4138308).

Almost surely, 2^30235381 is an apocalyptic number.

It is an amenable number.

30235381 is a deficient number, since it is larger than the sum of its proper divisors (2871083).

30235381 is a wasteful number, since it uses less digits than its factorization.

30235381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10211.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 30235381 is about 5498.6708393938. The cubic root of 30235381 is about 311.5337827833.

Adding to 30235381 its reverse (18353203), we get a palindrome (48588584).

The spelling of 30235381 in words is "thirty million, two hundred thirty-five thousand, three hundred eighty-one".