30212000 has 192 divisors, whose sum is σ = 92461824. Its totient is φ = 9446400.

The previous prime is 30211963. The next prime is 30212003. The reversal of 30212000 is 21203.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is not an unprimeable number, because it can be changed into a prime (30212003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 363959 + ... + 364041.

It is an arithmetic number, because the mean of its divisors is an integer number (481572).

Almost surely, 2^30212000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30212000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46230912).

30212000 is an abundant number, since it is smaller than the sum of its proper divisors (62249824).

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

30212000 is a wasteful number, since it uses less digits than its factorization.

30212000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128 (or 110 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 30212000 is about 5496.5443689649. The cubic root of 30212000 is about 311.4534591194.

Adding to 30212000 its reverse (21203), we get a palindrome (30233203).

The spelling of 30212000 in words is "thirty million, two hundred twelve thousand".