30423999 has 16 divisors (see below), whose sum is σ = 43683840. Its totient is φ = 18764160.

The previous prime is 30423979. The next prime is 30424003. The reversal of 30423999 is 99932403.

It is not a de Polignac number, because 30423999 - 2¹³ = 30415807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30423949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2047 + ... + 8064.

It is an arithmetic number, because the mean of its divisors is an integer number (2730240).

Almost surely, 2^30423999 is an apocalyptic number.

30423999 is a deficient number, since it is larger than the sum of its proper divisors (13259841).

30423999 is a wasteful number, since it uses less digits than its factorization.

30423999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10190.

The product of its (nonzero) digits is 52488, while the sum is 39.

The square root of 30423999 is about 5515.7954095488. The cubic root of 30423999 is about 312.1802562094.

The spelling of 30423999 in words is "thirty million, four hundred twenty-three thousand, nine hundred ninety-nine".