30252042 has 28 divisors (see below), whose sum is σ = 68039250. Its totient is φ = 10083528.

The previous prime is 30252037. The next prime is 30252043. The reversal of 30252042 is 24025203.

It can be written as a sum of positive squares in only one way, i.e., 30041361 + 210681 = 5481^2 + 459^2 .

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 (30252043) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 8917 + ... + 11832.

Almost surely, 2^30252042 is an apocalyptic number.

30252042 is an abundant number, since it is smaller than the sum of its proper divisors (37787208).

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

30252042 is an equidigital number, since it uses as much as digits as its factorization.

30252042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20769 (or 20754 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 30252042 is about 5500.1856332309. The cubic root of 30252042 is about 311.5909951296.

Adding to 30252042 its reverse (24025203), we get a palindrome (54277245).

The spelling of 30252042 in words is "thirty million, two hundred fifty-two thousand, forty-two".