30280042 has 8 divisors (see below), whose sum is σ = 48913956. Its totient is φ = 13975392.

The previous prime is 30280027. The next prime is 30280051. The reversal of 30280042 is 24008203.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 25391521 + 4888521 = 5039^2 + 2211^2 .

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

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, 582283 + ... + 582334.

Almost surely, 2^30280042 is an apocalyptic number.

30280042 is a deficient number, since it is larger than the sum of its proper divisors (18633914).

30280042 is a wasteful number, since it uses less digits than its factorization.

30280042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1164632.

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

The square root of 30280042 is about 5502.7304131676. The cubic root of 30280042 is about 311.6870972655.

Adding to 30280042 its reverse (24008203), we get a palindrome (54288245).

The spelling of 30280042 in words is "thirty million, two hundred eighty thousand, forty-two".