42844030 has 16 divisors (see below), whose sum is σ = 78427440. Its totient is φ = 16846912.

The previous prime is 42844013. The next prime is 42844079. The reversal of 42844030 is 3044824.

It is a super-2 number, since 2×42844030² = 3671221813281800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42843986 and 42844004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35719 + ... + 36898.

It is an arithmetic number, because the mean of its divisors is an integer number (4901715).

Almost surely, 2^42844030 is an apocalyptic number.

42844030 is a deficient number, since it is larger than the sum of its proper divisors (35583410).

42844030 is a wasteful number, since it uses less digits than its factorization.

42844030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72683.

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 42844030 is about 6545.5351194536. The cubic root of 42844030 is about 349.9157075922.

Adding to 42844030 its reverse (3044824), we get a palindrome (45888854).

The spelling of 42844030 in words is "forty-two million, eight hundred forty-four thousand, thirty".