42180650 has 12 divisors (see below), whose sum is σ = 78456102. Its totient is φ = 16872240.

The previous prime is 42180647. The next prime is 42180653. The reversal of 42180650 is 5608124.

It is an interprime number because it is at equal distance from previous prime (42180647) and next prime (42180653).

It can be written as a sum of positive squares in 3 ways, for example, as 18395521 + 23785129 = 4289^2 + 4877^2 .

It is not an unprimeable number, because it can be changed into a prime (42180653) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 421757 + ... + 421856.

Almost surely, 2^42180650 is an apocalyptic number.

42180650 is a deficient number, since it is larger than the sum of its proper divisors (36275452).

42180650 is a wasteful number, since it uses less digits than its factorization.

42180650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843625 (or 843620 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 42180650 is about 6494.6631937307. The cubic root of 42180650 is about 348.1003200887.

Adding to 42180650 its reverse (5608124), we get a palindrome (47788774).

The spelling of 42180650 in words is "forty-two million, one hundred eighty thousand, six hundred fifty".