30199421 has 8 divisors (see below), whose sum is σ = 34734720. Its totient is φ = 25719408.

The previous prime is 30199397. The next prime is 30199423. The reversal of 30199421 is 12499103.

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 30199421 - 2¹⁴ = 30183037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30199423) 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, 12641 + ... + 14838.

It is an arithmetic number, because the mean of its divisors is an integer number (4341840).

Almost surely, 2^30199421 is an apocalyptic number.

It is an amenable number.

30199421 is a deficient number, since it is larger than the sum of its proper divisors (4535299).

30199421 is a wasteful number, since it uses less digits than its factorization.

30199421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27643.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 30199421 is about 5495.3999854424. The cubic root of 30199421 is about 311.4102277663.

The spelling of 30199421 in words is "thirty million, one hundred ninety-nine thousand, four hundred twenty-one".