30423319 has 18 divisors (see below), whose sum is σ = 33954200. Its totient is φ = 27251136.

The previous prime is 30423299. The next prime is 30423359. The reversal of 30423319 is 91332403.

It is a happy number.

It is not a de Polignac number, because 30423319 - 2⁷ = 30423191 is a prime.

It is a super-2 number, since 2×30423319² = 1851156677951522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30423293 and 30423302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30423359) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 152782 + ... + 152980.

Almost surely, 2^30423319 is an apocalyptic number.

30423319 is a deficient number, since it is larger than the sum of its proper divisors (3530881).

30423319 is a wasteful number, since it uses less digits than its factorization.

30423319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279 (or 239 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 30423319 is about 5515.7337680494. The cubic root of 30423319 is about 312.1779303684.

The spelling of 30423319 in words is "thirty million, four hundred twenty-three thousand, three hundred nineteen".