30023406 has 32 divisors (see below), whose sum is σ = 76250880. Its totient is φ = 8578008.

The previous prime is 30023369. The next prime is 30023431. The reversal of 30023406 is 60432003.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39336 + ... + 40091.

It is an arithmetic number, because the mean of its divisors is an integer number (2382840).

Almost surely, 2^30023406 is an apocalyptic number.

30023406 is an abundant number, since it is smaller than the sum of its proper divisors (46227474).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30023406 is a wasteful number, since it uses less digits than its factorization.

30023406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79445 (or 79439 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 30023406 is about 5479.3618241543. The cubic root of 30023406 is about 310.8040383489.

Adding to 30023406 its reverse (60432003), we get a palindrome (90455409).

The spelling of 30023406 in words is "thirty million, twenty-three thousand, four hundred six".