30213460 has 24 divisors (see below), whose sum is σ = 65164680. Its totient is φ = 11758464.

The previous prime is 30213431. The next prime is 30213493. The reversal of 30213460 is 6431203.

It can be written as a sum of positive squares in 4 ways, for example, as 19044496 + 11168964 = 4364^2 + 3342^2 .

It is a congruent number.

It is an unprimeable number.

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, 19675 + ... + 21154.

It is an arithmetic number, because the mean of its divisors is an integer number (2715195).

Almost surely, 2^30213460 is an apocalyptic number.

It is an amenable number.

30213460 is an abundant number, since it is smaller than the sum of its proper divisors (34951220).

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

30213460 is a wasteful number, since it uses less digits than its factorization.

30213460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40875 (or 40873 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 30213460 is about 5496.6771780777. The cubic root of 30213460 is about 311.4584760523.

Adding to 30213460 its reverse (6431203), we get a palindrome (36644663).

The spelling of 30213460 in words is "thirty million, two hundred thirteen thousand, four hundred sixty".