30219993 has 16 divisors (see below), whose sum is σ = 45864000. Its totient is φ = 19654560.

The previous prime is 30219983. The next prime is 30220007. The reversal of 30219993 is 39991203.

It is not a de Polignac number, because 30219993 - 2¹³ = 30211801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30219913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12543 + ... + 14756.

It is an arithmetic number, because the mean of its divisors is an integer number (2866500).

Almost surely, 2^30219993 is an apocalyptic number.

It is an amenable number.

30219993 is a deficient number, since it is larger than the sum of its proper divisors (15644007).

30219993 is a wasteful number, since it uses less digits than its factorization.

30219993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27349 (or 27343 counting only the distinct ones).

The product of its (nonzero) digits is 13122, while the sum is 36.

The square root of 30219993 is about 5497.2714140744. The cubic root of 30219993 is about 311.4809231292.

The spelling of 30219993 in words is "thirty million, two hundred nineteen thousand, nine hundred ninety-three".