30434421 has 8 divisors (see below), whose sum is σ = 40609504. Its totient is φ = 20274480.

The previous prime is 30434399. The next prime is 30434441. The reversal of 30434421 is 12443403.

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

It is not a de Polignac number, because 30434421 - 2⁵ = 30434389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30434441) 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, 2310 + ... + 8136.

It is an arithmetic number, because the mean of its divisors is an integer number (5076188).

Almost surely, 2^30434421 is an apocalyptic number.

It is an amenable number.

30434421 is a deficient number, since it is larger than the sum of its proper divisors (10175083).

30434421 is a wasteful number, since it uses less digits than its factorization.

30434421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7571.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 30434421 is about 5516.7400700051. The cubic root of 30434421 is about 312.2158988084.

Adding to 30434421 its reverse (12443403), we get a palindrome (42877824).

The spelling of 30434421 in words is "thirty million, four hundred thirty-four thousand, four hundred twenty-one".