30074721 has 8 divisors (see below), whose sum is σ = 40245504. Its totient is φ = 19976880.

The previous prime is 30074699. The next prime is 30074773. The reversal of 30074721 is 12747003.

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

It is not a de Polignac number, because 30074721 - 2⁶ = 30074657 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30074691 and 30074700.

It is not an unprimeable number, because it can be changed into a prime (30074021) 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, 17265 + ... + 18926.

It is an arithmetic number, because the mean of its divisors is an integer number (5030688).

Almost surely, 2^30074721 is an apocalyptic number.

It is an amenable number.

30074721 is a deficient number, since it is larger than the sum of its proper divisors (10170783).

30074721 is a wasteful number, since it uses less digits than its factorization.

30074721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36471.

The product of its (nonzero) digits is 1176, while the sum is 24.

The square root of 30074721 is about 5484.0423958974. The cubic root of 30074721 is about 310.9810095137.

The spelling of 30074721 in words is "thirty million, seventy-four thousand, seven hundred twenty-one".