30142950 has 48 divisors (see below), whose sum is σ = 75518976. Its totient is φ = 7956000.

The previous prime is 30142927. The next prime is 30142951. The reversal of 30142950 is 5924103.

It is a self number, because there is not a number n which added to its sum of digits gives 30142950.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30142951) 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, 14475 + ... + 16425.

It is an arithmetic number, because the mean of its divisors is an integer number (1573312).

Almost surely, 2^30142950 is an apocalyptic number.

30142950 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 30142950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37759488).

30142950 is an abundant number, since it is smaller than the sum of its proper divisors (45376026).

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

30142950 is a wasteful number, since it uses less digits than its factorization.

30142950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2069 (or 2064 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 30142950 is about 5490.2595567059. The cubic root of 30142950 is about 311.2160008668.

The spelling of 30142950 in words is "thirty million, one hundred forty-two thousand, nine hundred fifty".