30342519 has 20 divisors (see below), whose sum is σ = 45476640. Its totient is φ = 20161440.

The previous prime is 30342517. The next prime is 30342539. The reversal of 30342519 is 91524303.

It is not a de Polignac number, because 30342519 - 2¹ = 30342517 is a prime.

It is a super-2 number, since 2×30342519² = 1841336918530722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 30342492 and 30342501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30342511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 41842 + ... + 42560.

It is an arithmetic number, because the mean of its divisors is an integer number (2273832).

Almost surely, 2^30342519 is an apocalyptic number.

30342519 is a deficient number, since it is larger than the sum of its proper divisors (15134121).

30342519 is an equidigital number, since it uses as much as digits as its factorization.

30342519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1252 (or 1243 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 30342519 is about 5508.4043969193. The cubic root of 30342519 is about 311.9013186438.

The spelling of 30342519 in words is "thirty million, three hundred forty-two thousand, five hundred nineteen".