42023650 has 12 divisors (see below), whose sum is σ = 78164082. Its totient is φ = 16809440.

The previous prime is 42023633. The next prime is 42023659. The reversal of 42023650 is 5632024.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 33884041 + 8139609 = 5821^2 + 2853^2 .

It is not an unprimeable number, because it can be changed into a prime (42023659) 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 5 ways as a sum of consecutive naturals, for example, 420187 + ... + 420286.

Almost surely, 2^42023650 is an apocalyptic number.

42023650 is a deficient number, since it is larger than the sum of its proper divisors (36140432).

42023650 is a wasteful number, since it uses less digits than its factorization.

42023650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840485 (or 840480 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 42023650 is about 6482.5650787323. The cubic root of 42023650 is about 347.6678967146.

Adding to 42023650 its reverse (5632024), we get a palindrome (47655674).

The spelling of 42023650 in words is "forty-two million, twenty-three thousand, six hundred fifty".