30423132 has 36 divisors (see below), whose sum is σ = 81428256. Its totient is φ = 9544320.

The previous prime is 30423131. The next prime is 30423143. The reversal of 30423132 is 23132403.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30423131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24244 + ... + 25467.

It is an arithmetic number, because the mean of its divisors is an integer number (2261896).

Almost surely, 2^30423132 is an apocalyptic number.

It is an amenable number.

30423132 is an abundant number, since it is smaller than the sum of its proper divisors (51005124).

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

30423132 is a wasteful number, since it uses less digits than its factorization.

30423132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49738 (or 49733 counting only the distinct ones).

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

The square root of 30423132 is about 5515.7168165162. The cubic root of 30423132 is about 312.1772907560.

Adding to 30423132 its reverse (23132403), we get a palindrome (53555535).

It can be divided in two parts, 304 and 23132, that added together give a triangular number (23436 = T₂₁₆).

The spelling of 30423132 in words is "thirty million, four hundred twenty-three thousand, one hundred thirty-two".