30420771 has 8 divisors (see below), whose sum is σ = 41657424. Its totient is φ = 19732320.

The previous prime is 30420763. The next prime is 30420773. The reversal of 30420771 is 17702403.

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

It is not a de Polignac number, because 30420771 - 2³ = 30420763 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30420773) 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, 136920 + ... + 137141.

It is an arithmetic number, because the mean of its divisors is an integer number (5207178).

Almost surely, 2^30420771 is an apocalyptic number.

30420771 is a deficient number, since it is larger than the sum of its proper divisors (11236653).

30420771 is a wasteful number, since it uses less digits than its factorization.

30420771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274101.

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

The square root of 30420771 is about 5515.5027875979. The cubic root of 30420771 is about 312.1692149970.

The spelling of 30420771 in words is "thirty million, four hundred twenty thousand, seven hundred seventy-one".