30449232 has 120 divisors (see below), whose sum is σ = 95172480. Its totient is φ = 9008640.

The previous prime is 30449231. The next prime is 30449233. The reversal of 30449232 is 23294403.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (30449231) and next prime (30449233).

It is a junction number, because it is equal to n+sod(n) for n = 30449196 and 30449205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30449231) 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 23 ways as a sum of consecutive naturals, for example, 74244 + ... + 74652.

It is an arithmetic number, because the mean of its divisors is an integer number (793104).

Almost surely, 2^30449232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30449232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47586240).

30449232 is an abundant number, since it is smaller than the sum of its proper divisors (64723248).

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

30449232 is a wasteful number, since it uses less digits than its factorization.

30449232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481 (or 472 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 30449232 is about 5518.0822755736. The cubic root of 30449232 is about 312.2665375216.

The spelling of 30449232 in words is "thirty million, four hundred forty-nine thousand, two hundred thirty-two".