30151842 has 32 divisors (see below), whose sum is σ = 69092352. Its totient is φ = 8593104.

The previous prime is 30151817. The next prime is 30151843. The reversal of 30151842 is 24815103.

It is not an unprimeable number, because it can be changed into a prime (30151843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24043 + ... + 25265.

It is an arithmetic number, because the mean of its divisors is an integer number (2159136).

Almost surely, 2^30151842 is an apocalyptic number.

30151842 is an abundant number, since it is smaller than the sum of its proper divisors (38940510).

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

30151842 is a wasteful number, since it uses less digits than its factorization.

30151842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1822.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 30151842 is about 5491.0692947731. The cubic root of 30151842 is about 311.2466001790.

Adding to 30151842 its reverse (24815103), we get a palindrome (54966945).

The spelling of 30151842 in words is "thirty million, one hundred fifty-one thousand, eight hundred forty-two".