30201642 has 24 divisors (see below), whose sum is σ = 65913120. Its totient is φ = 9993960.

The previous prime is 30201617. The next prime is 30201643. The reversal of 30201642 is 24610203.

It is a happy number.

30201642 is a `hidden beast` number, since 3 + 0 + 20 + 1 + 642 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (30201643) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3534 + ... + 8537.

It is an arithmetic number, because the mean of its divisors is an integer number (2746380).

Almost surely, 2^30201642 is an apocalyptic number.

30201642 is an abundant number, since it is smaller than the sum of its proper divisors (35711478).

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

30201642 is a wasteful number, since it uses less digits than its factorization.

30201642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12218 (or 12215 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 30201642 is about 5495.6020598293. The cubic root of 30201642 is about 311.4178617445.

Adding to 30201642 its reverse (24610203), we get a palindrome (54811845).

The spelling of 30201642 in words is "thirty million, two hundred one thousand, six hundred forty-two".