30802042 has 8 divisors (see below), whose sum is σ = 46336500. Its totient is φ = 15356544.

The previous prime is 30802027. The next prime is 30802043. The reversal of 30802042 is 24020803.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 28955161 + 1846881 = 5381^2 + 1359^2 .

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

It is not an unprimeable number, because it can be changed into a prime (30802043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21367 + ... + 22762.

Almost surely, 2^30802042 is an apocalyptic number.

30802042 is a deficient number, since it is larger than the sum of its proper divisors (15534458).

30802042 is a wasteful number, since it uses less digits than its factorization.

30802042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44480.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 30802042 is about 5549.9587385854. The cubic root of 30802042 is about 313.4679686484.

Adding to 30802042 its reverse (24020803), we get a palindrome (54822845).

The spelling of 30802042 in words is "thirty million, eight hundred two thousand, forty-two".