30368142 has 96 divisors (see below), whose sum is σ = 82080000. Its totient is φ = 8282736.

The previous prime is 30368089. The next prime is 30368161. The reversal of 30368142 is 24186303.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 60609 + ... + 61107.

It is an arithmetic number, because the mean of its divisors is an integer number (855000).

Almost surely, 2^30368142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30368142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41040000).

30368142 is an abundant number, since it is smaller than the sum of its proper divisors (51711858).

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

30368142 is a wasteful number, since it uses less digits than its factorization.

30368142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547 (or 534 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 30368142 is about 5510.7297157455. The cubic root of 30368142 is about 311.9890898552.

The spelling of 30368142 in words is "thirty million, three hundred sixty-eight thousand, one hundred forty-two".