42444002 has 8 divisors (see below), whose sum is σ = 67411116. Its totient is φ = 19973632.

The previous prime is 42444001. The next prime is 42444029. The reversal of 42444002 is 20044424.

It can be written as a sum of positive squares in 2 ways, for example, as 37466641 + 4977361 = 6121^2 + 2231^2 .

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

It is not an unprimeable number, because it can be changed into a prime (42444001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 624143 + ... + 624210.

Almost surely, 2^42444002 is an apocalyptic number.

42444002 is a deficient number, since it is larger than the sum of its proper divisors (24967114).

42444002 is a wasteful number, since it uses less digits than its factorization.

42444002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1248372.

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 42444002 is about 6514.9061390015. The cubic root of 42444002 is about 348.8232644560.

Adding to 42444002 its reverse (20044424), we get a palindrome (62488426).

The spelling of 42444002 in words is "forty-two million, four hundred forty-four thousand, two".