30213470 has 16 divisors (see below), whose sum is σ = 62153568. Its totient is φ = 10358880.

The previous prime is 30213431. The next prime is 30213493. The reversal of 30213470 is 7431203.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 215741 + ... + 215880.

It is an arithmetic number, because the mean of its divisors is an integer number (3884598).

Almost surely, 2^30213470 is an apocalyptic number.

30213470 is an abundant number, since it is smaller than the sum of its proper divisors (31940098).

30213470 is a wasteful number, since it uses less digits than its factorization.

30213470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431635.

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 30213470 is about 5496.6780877181. The cubic root of 30213470 is about 311.4585104143.

Adding to 30213470 its reverse (7431203), we get a palindrome (37644673).

The spelling of 30213470 in words is "thirty million, two hundred thirteen thousand, four hundred seventy".