30342040 has 16 divisors (see below), whose sum is σ = 68269680. Its totient is φ = 12136800.

The previous prime is 30342017. The next prime is 30342041. The reversal of 30342040 is 4024303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30342041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 379236 + ... + 379315.

It is an arithmetic number, because the mean of its divisors is an integer number (4266855).

Almost surely, 2^30342040 is an apocalyptic number.

It is an amenable number.

30342040 is an abundant number, since it is smaller than the sum of its proper divisors (37927640).

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

30342040 is a wasteful number, since it uses less digits than its factorization.

30342040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758562 (or 758558 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 30342040 is about 5508.3609177322. The cubic root of 30342040 is about 311.8996773659.

Adding to 30342040 its reverse (4024303), we get a palindrome (34366343).

The spelling of 30342040 in words is "thirty million, three hundred forty-two thousand, forty".