30642051 has 8 divisors (see below), whose sum is σ = 44570304. Its totient is φ = 18570920.

The previous prime is 30642037. The next prime is 30642083. The reversal of 30642051 is 15024603.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 30642051 - 2⁵ = 30642019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30642011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 464241 + ... + 464306.

It is an arithmetic number, because the mean of its divisors is an integer number (5571288).

Almost surely, 2^30642051 is an apocalyptic number.

30642051 is a deficient number, since it is larger than the sum of its proper divisors (13928253).

30642051 is a wasteful number, since it uses less digits than its factorization.

30642051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 928561.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 30642051 is about 5535.5262622446. The cubic root of 30642051 is about 312.9242910793.

Adding to 30642051 its reverse (15024603), we get a palindrome (45666654).

It can be divided in two parts, 3064 and 2051, that added together give a palindrome (5115).

The spelling of 30642051 in words is "thirty million, six hundred forty-two thousand, fifty-one".