30440132 has 24 divisors (see below), whose sum is σ = 58859136. Its totient is φ = 13701248.

The previous prime is 30440119. The next prime is 30440141. The reversal of 30440132 is 23104403.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 30440132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8168 + ... + 11295.

It is an arithmetic number, because the mean of its divisors is an integer number (2452464).

Almost surely, 2^30440132 is an apocalyptic number.

It is an amenable number.

30440132 is a deficient number, since it is larger than the sum of its proper divisors (28419004).

30440132 is a wasteful number, since it uses less digits than its factorization.

30440132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19507 (or 19505 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 30440132 is about 5517.2576521312. The cubic root of 30440132 is about 312.2354266262.

Adding to 30440132 its reverse (23104403), we get a palindrome (53544535).

The spelling of 30440132 in words is "thirty million, four hundred forty thousand, one hundred thirty-two".