30193380 has 144 divisors (see below), whose sum is σ = 108186624. Its totient is φ = 6670080.

The previous prime is 30193363. The next prime is 30193391. The reversal of 30193380 is 8339103.

30193380 = 218² + 219² + ... + 465².

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 38674 + ... + 39446.

It is an arithmetic number, because the mean of its divisors is an integer number (751296).

Almost surely, 2^30193380 is an apocalyptic number.

30193380 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30193380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54093312).

30193380 is an abundant number, since it is smaller than the sum of its proper divisors (77993244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30193380 is a wasteful number, since it uses less digits than its factorization.

30193380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826 (or 821 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 30193380 is about 5494.8503164327. The cubic root of 30193380 is about 311.3894618645.

The spelling of 30193380 in words is "thirty million, one hundred ninety-three thousand, three hundred eighty".