30212514 has 40 divisors (see below), whose sum is σ = 68040720. Its totient is φ = 10020024.

The previous prime is 30212513. The next prime is 30212521. The reversal of 30212514 is 41521203.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (30212513) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 45517 + ... + 46175.

It is an arithmetic number, because the mean of its divisors is an integer number (1701018).

Almost surely, 2^30212514 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30212514, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34020360).

30212514 is an abundant number, since it is smaller than the sum of its proper divisors (37828206).

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

30212514 is a wasteful number, since it uses less digits than its factorization.

30212514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 956 (or 947 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 30212514 is about 5496.5911254158. The cubic root of 30212514 is about 311.4552253731.

Adding to 30212514 its reverse (41521203), we get a palindrome (71733717).

The spelling of 30212514 in words is "thirty million, two hundred twelve thousand, five hundred fourteen".