30072519 has 8 divisors (see below), whose sum is σ = 44551920. Its totient is φ = 20048328.

The previous prime is 30072517. The next prime is 30072529. The reversal of 30072519 is 91527003.

It is not a de Polignac number, because 30072519 - 2¹ = 30072517 is a prime.

It is a super-2 number, since 2×30072519² = 1808712798010722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1113797 = 30072519 / (3 + 0 + 0 + 7 + 2 + 5 + 1 + 9).

It is a junction number, because it is equal to n+sod(n) for n = 30072492 and 30072501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30072517) 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, 556872 + ... + 556925.

It is an arithmetic number, because the mean of its divisors is an integer number (5568990).

Almost surely, 2^30072519 is an apocalyptic number.

30072519 is a deficient number, since it is larger than the sum of its proper divisors (14479401).

30072519 is a wasteful number, since it uses less digits than its factorization.

30072519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1113806 (or 1113800 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 30072519 is about 5483.8416279101. The cubic root of 30072519 is about 310.9734195636.

The spelling of 30072519 in words is "thirty million, seventy-two thousand, five hundred nineteen".