30642044 has 12 divisors (see below), whose sum is σ = 53953704. Its totient is φ = 15226704.

The previous prime is 30642037. The next prime is 30642083. The reversal of 30642044 is 44024603.

It is a happy number.

It is a congruent number.

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, 22847 + ... + 24150.

It is an arithmetic number, because the mean of its divisors is an integer number (4496142).

Almost surely, 2^30642044 is an apocalyptic number.

It is an amenable number.

30642044 is a deficient number, since it is larger than the sum of its proper divisors (23311660).

30642044 is a wasteful number, since it uses less digits than its factorization.

30642044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47164 (or 47162 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 30642044 is about 5535.5256299651. The cubic root of 30642044 is about 312.9242672507.

Adding to 30642044 its reverse (44024603), we get a palindrome (74666647).

The spelling of 30642044 in words is "thirty million, six hundred forty-two thousand, forty-four".