30087280 has 40 divisors (see below), whose sum is σ = 74071152. Its totient is φ = 11326464.

The previous prime is 30087269. The next prime is 30087287. The reversal of 30087280 is 8278003.

It is a happy number.

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

It is a super-3 number, since 3×30087280³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30087287) 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 7 ways as a sum of consecutive naturals, for example, 9702 + ... + 12421.

Almost surely, 2^30087280 is an apocalyptic number.

It is an amenable number.

30087280 is an abundant number, since it is smaller than the sum of its proper divisors (43983872).

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

30087280 is a wasteful number, since it uses less digits than its factorization.

30087280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22153 (or 22147 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 30087280 is about 5485.1873258805. The cubic root of 30087280 is about 311.0242913447.

The spelling of 30087280 in words is "thirty million, eighty-seven thousand, two hundred eighty".