30428119 has 2 divisors, whose sum is σ = 30428120. Its totient is φ = 30428118.

The previous prime is 30428107. The next prime is 30428137. The reversal of 30428119 is 91182403.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30428119 - 2⁵ = 30428087 is a prime.

It is a super-2 number, since 2×30428119² = 1851740851756322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30428159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15214059 + 15214060.

It is an arithmetic number, because the mean of its divisors is an integer number (15214060).

Almost surely, 2^30428119 is an apocalyptic number.

30428119 is a deficient number, since it is larger than the sum of its proper divisors (1).

30428119 is an equidigital number, since it uses as much as digits as its factorization.

30428119 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 30428119 is about 5516.1688697863. The cubic root of 30428119 is about 312.1943473288.

The spelling of 30428119 in words is "thirty million, four hundred twenty-eight thousand, one hundred nineteen".