30211420 has 24 divisors (see below), whose sum is σ = 66203424. Its totient is φ = 11558976.

The previous prime is 30211411. The next prime is 30211427. The reversal of 30211420 is 2411203.

It is a self number, because there is not a number n which added to its sum of digits gives 30211420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30211427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32379 + ... + 33298.

It is an arithmetic number, because the mean of its divisors is an integer number (2758476).

Almost surely, 2^30211420 is an apocalyptic number.

It is an amenable number.

30211420 is an abundant number, since it is smaller than the sum of its proper divisors (35992004).

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

30211420 is a wasteful number, since it uses less digits than its factorization.

30211420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65709 (or 65707 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 30211420 is about 5496.4916082898. The cubic root of 30211420 is about 311.4514660465.

Adding to 30211420 its reverse (2411203), we get a palindrome (32622623).

The spelling of 30211420 in words is "thirty million, two hundred eleven thousand, four hundred twenty".