30142050 has 48 divisors (see below), whose sum is σ = 76786752. Its totient is φ = 7819200.

The previous prime is 30142043. The next prime is 30142051. The reversal of 30142050 is 5024103.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30142051) 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, 2835 + ... + 8265.

It is an arithmetic number, because the mean of its divisors is an integer number (1599724).

Almost surely, 2^30142050 is an apocalyptic number.

30142050 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 30142050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38393376).

30142050 is an abundant number, since it is smaller than the sum of its proper divisors (46644702).

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

30142050 is a wasteful number, since it uses less digits than its factorization.

30142050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5483 (or 5478 counting only the distinct ones).

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

The square root of 30142050 is about 5490.1775927560. The cubic root of 30142050 is about 311.2129034351.

Adding to 30142050 its reverse (5024103), we get a palindrome (35166153).

The spelling of 30142050 in words is "thirty million, one hundred forty-two thousand, fifty".