30642419 has 2 divisors, whose sum is σ = 30642420. Its totient is φ = 30642418.

The previous prime is 30642413. The next prime is 30642431. The reversal of 30642419 is 91424603.

It is a weak prime.

It is an emirp because it is prime and its reverse (91424603) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30642419 - 2⁸ = 30642163 is a prime.

It is a super-2 number, since 2×30642419² = 1877915684343122, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 30642391 and 30642400.

It is not a weakly prime, because it can be changed into another prime (30642413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15321209 + 15321210.

It is an arithmetic number, because the mean of its divisors is an integer number (15321210).

Almost surely, 2^30642419 is an apocalyptic number.

30642419 is a deficient number, since it is larger than the sum of its proper divisors (1).

30642419 is an equidigital number, since it uses as much as digits as its factorization.

30642419 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 30642419 is about 5535.5595019835. The cubic root of 30642419 is about 312.9255437769.

The spelling of 30642419 in words is "thirty million, six hundred forty-two thousand, four hundred nineteen".