30752042 has 4 divisors (see below), whose sum is σ = 46128066. Its totient is φ = 15376020.

The previous prime is 30752023. The next prime is 30752077. The reversal of 30752042 is 24025703.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 30459361 + 292681 = 5519^2 + 541^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30751999 and 30752017.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7688009 + ... + 7688012.

Almost surely, 2^30752042 is an apocalyptic number.

30752042 is a deficient number, since it is larger than the sum of its proper divisors (15376024).

30752042 is a wasteful number, since it uses less digits than its factorization.

30752042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15376023.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 30752042 is about 5545.4523710875. The cubic root of 30752042 is about 313.2982625100.

Adding to 30752042 its reverse (24025703), we get a palindrome (54777745).

The spelling of 30752042 in words is "thirty million, seven hundred fifty-two thousand, forty-two".