42044650 has 24 divisors (see below), whose sum is σ = 79018380. Its totient is φ = 16642560.

The previous prime is 42044647. The next prime is 42044657. The reversal of 42044650 is 5644024.

It can be written as a sum of positive squares in 6 ways, for example, as 13024881 + 29019769 = 3609^2 + 5387^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (42044657) 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 11 ways as a sum of consecutive naturals, for example, 516 + ... + 9184.

Almost surely, 2^42044650 is an apocalyptic number.

42044650 is a deficient number, since it is larger than the sum of its proper divisors (36973730).

42044650 is a wasteful number, since it uses less digits than its factorization.

42044650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8778 (or 8773 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 42044650 is about 6484.1846056386. The cubic root of 42044650 is about 347.7257991101.

Adding to 42044650 its reverse (5644024), we get a palindrome (47688674).

The spelling of 42044650 in words is "forty-two million, forty-four thousand, six hundred fifty".