30465421 has 4 divisors (see below), whose sum is σ = 34817632. Its totient is φ = 26113212.

The previous prime is 30465403. The next prime is 30465427. The reversal of 30465421 is 12456403.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30465421 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 (30465427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2176095 + ... + 2176108.

It is an arithmetic number, because the mean of its divisors is an integer number (8704408).

Almost surely, 2^30465421 is an apocalyptic number.

It is an amenable number.

30465421 is a deficient number, since it is larger than the sum of its proper divisors (4352211).

30465421 is an equidigital number, since it uses as much as digits as its factorization.

30465421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4352210.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 30465421 is about 5519.5489851980. The cubic root of 30465421 is about 312.3218688277.

The spelling of 30465421 in words is "thirty million, four hundred sixty-five thousand, four hundred twenty-one".