30210252 has 48 divisors (see below), whose sum is σ = 72855552. Its totient is φ = 9737280.

The previous prime is 30210251. The next prime is 30210253. The reversal of 30210252 is 25201203.

It is an interprime number because it is at equal distance from previous prime (30210251) and next prime (30210253).

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30210251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65302 + ... + 65762.

It is an arithmetic number, because the mean of its divisors is an integer number (1517824).

Almost surely, 2^30210252 is an apocalyptic number.

It is an amenable number.

30210252 is an abundant number, since it is smaller than the sum of its proper divisors (42645300).

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

30210252 is a wasteful number, since it uses less digits than its factorization.

30210252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638 (or 636 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 30210252 is about 5496.3853576692. The cubic root of 30210252 is about 311.4474523324.

Adding to 30210252 its reverse (25201203), we get a palindrome (55411455).

The spelling of 30210252 in words is "thirty million, two hundred ten thousand, two hundred fifty-two".