30366381 has 16 divisors (see below), whose sum is σ = 41762304. Its totient is φ = 19612224.

The previous prime is 30366373. The next prime is 30366383. The reversal of 30366381 is 18366303.

It is not a de Polignac number, because 30366381 - 2³ = 30366373 is a prime.

It is a super-2 number, since 2×30366381² = 1844234190074322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30366383) 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, 34756 + ... + 35618.

It is an arithmetic number, because the mean of its divisors is an integer number (2610144).

Almost surely, 2^30366381 is an apocalyptic number.

It is an amenable number.

30366381 is a deficient number, since it is larger than the sum of its proper divisors (11395923).

30366381 is a wasteful number, since it uses less digits than its factorization.

30366381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1220.

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 30366381 is about 5510.5699342264. The cubic root of 30366381 is about 311.9830591558.

The spelling of 30366381 in words is "thirty million, three hundred sixty-six thousand, three hundred eighty-one".