30032340 has 96 divisors (see below), whose sum is σ = 91539840. Its totient is φ = 7312896.

The previous prime is 30032329. The next prime is 30032341. The reversal of 30032340 is 4323003.

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 (30032341) 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 31 ways as a sum of consecutive naturals, for example, 108282 + ... + 108558.

It is an arithmetic number, because the mean of its divisors is an integer number (953540).

Almost surely, 2^30032340 is an apocalyptic number.

30032340 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30032340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45769920).

30032340 is an abundant number, since it is smaller than the sum of its proper divisors (61507500).

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

30032340 is a wasteful number, since it uses less digits than its factorization.

30032340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441 (or 439 counting only the distinct ones).

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

The square root of 30032340 is about 5480.1770044406. The cubic root of 30032340 is about 310.8348637201.

Adding to 30032340 its reverse (4323003), we get a palindrome (34355343).

It can be divided in two parts, 300 and 32340, that added together give a triangular number (32640 = T₂₅₅).

The spelling of 30032340 in words is "thirty million, thirty-two thousand, three hundred forty".