30197442 has 32 divisors (see below), whose sum is σ = 66484800. Its totient is φ = 9067520.

The previous prime is 30197429. The next prime is 30197467. The reversal of 30197442 is 24479103.

It is a happy 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, 5434 + ... + 9482.

It is an arithmetic number, because the mean of its divisors is an integer number (2077650).

Almost surely, 2^30197442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30197442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33242400).

30197442 is an abundant number, since it is smaller than the sum of its proper divisors (36287358).

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

30197442 is a wasteful number, since it uses less digits than its factorization.

30197442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4178.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 30197442 is about 5495.2199228056. The cubic root of 30197442 is about 311.4034252705.

The spelling of 30197442 in words is "thirty million, one hundred ninety-seven thousand, four hundred forty-two".