30987424 has 24 divisors (see below), whose sum is σ = 65700180. Its totient is φ = 14301696.

The previous prime is 30987421. The next prime is 30987427. The reversal of 30987424 is 42478903.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (30987421) and next prime (30987427).

It can be written as a sum of positive squares in 2 ways, for example, as 30603024 + 384400 = 5532^2 + 620^2 .

It is not an unprimeable number, because it can be changed into a prime (30987421) 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 3 ways as a sum of consecutive naturals, for example, 36829 + ... + 37660.

Almost surely, 2^30987424 is an apocalyptic number.

It is an amenable number.

30987424 is an abundant number, since it is smaller than the sum of its proper divisors (34712756).

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

30987424 is a wasteful number, since it uses less digits than its factorization.

30987424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74512 (or 74504 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 30987424 is about 5566.6348901289. The cubic root of 30987424 is about 314.0955799203.

The spelling of 30987424 in words is "thirty million, nine hundred eighty-seven thousand, four hundred twenty-four".