30154240 has 40 divisors (see below), whose sum is σ = 72305640. Its totient is φ = 12060672.

The previous prime is 30154217. The next prime is 30154261. The reversal of 30154240 is 4245103.

It is a tau number, because it is divible by the number of its divisors (40).

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3330 + ... + 8449.

It is an arithmetic number, because the mean of its divisors is an integer number (1807641).

Almost surely, 2^30154240 is an apocalyptic number.

It is an amenable number.

30154240 is an abundant number, since it is smaller than the sum of its proper divisors (42151400).

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

30154240 is an equidigital number, since it uses as much as digits as its factorization.

30154240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11802 (or 11786 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 30154240 is about 5491.2876449882. The cubic root of 30154240 is about 311.2548511902.

Adding to 30154240 its reverse (4245103), we get a palindrome (34399343).

The spelling of 30154240 in words is "thirty million, one hundred fifty-four thousand, two hundred forty".