30141684 has 72 divisors (see below), whose sum is σ = 80982720. Its totient is φ = 9432192.

The previous prime is 30141673. The next prime is 30141689. The reversal of 30141684 is 48614103.

It is a super-2 number, since 2×30141684² = 1817042228711712, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30141689) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48544 + ... + 49160.

It is an arithmetic number, because the mean of its divisors is an integer number (1124760).

Almost surely, 2^30141684 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 30141684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40491360).

30141684 is an abundant number, since it is smaller than the sum of its proper divisors (50841036).

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

30141684 is a wasteful number, since it uses less digits than its factorization.

30141684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709 (or 704 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 30141684 is about 5490.1442603997. The cubic root of 30141684 is about 311.2116437953.

Adding to 30141684 its reverse (48614103), we get a palindrome (78755787).

The spelling of 30141684 in words is "thirty million, one hundred forty-one thousand, six hundred eighty-four".