30141780 has 48 divisors (see below), whose sum is σ = 85283520. Its totient is φ = 7953408.

The previous prime is 30141779. The next prime is 30141803. The reversal of 30141780 is 8714103.

It is a self number, because there is not a number n which added to its sum of digits gives 30141780.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3231 + ... + 8409.

It is an arithmetic number, because the mean of its divisors is an integer number (1776740).

Almost surely, 2^30141780 is an apocalyptic number.

30141780 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30141780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42641760).

30141780 is an abundant number, since it is smaller than the sum of its proper divisors (55141740).

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

30141780 is a wasteful number, since it uses less digits than its factorization.

30141780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5288 (or 5286 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 30141780 is about 5490.1530033324. The cubic root of 30141780 is about 311.2119741936.

Adding to 30141780 its reverse (8714103), we get a palindrome (38855883).

The spelling of 30141780 in words is "thirty million, one hundred forty-one thousand, seven hundred eighty".