30342534 has 16 divisors (see below), whose sum is σ = 61223472. Its totient is φ = 10024448.

The previous prime is 30342517. The next prime is 30342539. The reversal of 30342534 is 43524303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30342539) 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, 21699 + ... + 23054.

It is an arithmetic number, because the mean of its divisors is an integer number (3826467).

Almost surely, 2^30342534 is an apocalyptic number.

30342534 is an abundant number, since it is smaller than the sum of its proper divisors (30880938).

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

30342534 is a wasteful number, since it uses less digits than its factorization.

30342534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44871.

The product of its (nonzero) digits is 4320, while the sum is 24.

The square root of 30342534 is about 5508.4057584750. The cubic root of 30342534 is about 311.9013700405.

Adding to 30342534 its reverse (43524303), we get a palindrome (73866837).

It can be divided in two parts, 30342 and 534, that added together give a triangular number (30876 = T₂₄₈).

The spelling of 30342534 in words is "thirty million, three hundred forty-two thousand, five hundred thirty-four".