30013642 has 8 divisors (see below), whose sum is σ = 46472832. Its totient is φ = 14522700.

The previous prime is 30013639. The next prime is 30013657. The reversal of 30013642 is 24631003.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×30013642² = 1801637412208328, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 241984 + ... + 242107.

It is an arithmetic number, because the mean of its divisors is an integer number (5809104).

Almost surely, 2^30013642 is an apocalyptic number.

30013642 is a deficient number, since it is larger than the sum of its proper divisors (16459190).

30013642 is a wasteful number, since it uses less digits than its factorization.

30013642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484124.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 30013642 is about 5478.4707720312. The cubic root of 30013642 is about 310.7703421979.

Adding to 30013642 its reverse (24631003), we get a palindrome (54644645).

The spelling of 30013642 in words is "thirty million, thirteen thousand, six hundred forty-two".