30023430 has 32 divisors (see below), whose sum is σ = 72244224. Its totient is φ = 7985376.

The previous prime is 30023369. The next prime is 30023431. The reversal of 30023430 is 3432003.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30023431) 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, 12939 + ... + 15081.

It is an arithmetic number, because the mean of its divisors is an integer number (2257632).

Almost surely, 2^30023430 is an apocalyptic number.

30023430 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30023430 is an abundant number, since it is smaller than the sum of its proper divisors (42220794).

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

30023430 is a wasteful number, since it uses less digits than its factorization.

30023430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2620.

The product of its (nonzero) digits is 216, while the sum is 15.

The square root of 30023430 is about 5479.3640141900. The cubic root of 30023430 is about 310.8041211653.

Adding to 30023430 its reverse (3432003), we get a palindrome (33455433).

The spelling of 30023430 in words is "thirty million, twenty-three thousand, four hundred thirty".