30066761 has 8 divisors (see below), whose sum is σ = 32576544. Its totient is φ = 27639360.

The previous prime is 30066749. The next prime is 30066763. The reversal of 30066761 is 16766003.

30066761 = T₃₄₈ + T₃₄₉ + ... + T₆₀₅.

It is a happy number.

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 30066761 - 2⁶ = 30066697 is a prime.

It is a super-2 number, since 2×30066761² = 1808020234062242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30066763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19835 + ... + 21296.

It is an arithmetic number, because the mean of its divisors is an integer number (4072068).

Almost surely, 2^30066761 is an apocalyptic number.

It is an amenable number.

30066761 is a deficient number, since it is larger than the sum of its proper divisors (2509783).

30066761 is a wasteful number, since it uses less digits than its factorization.

30066761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41191.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 30066761 is about 5483.3166058509. The cubic root of 30066761 is about 310.9535708856.

The spelling of 30066761 in words is "thirty million, sixty-six thousand, seven hundred sixty-one".