44890042 has 4 divisors (see below), whose sum is σ = 67335066. Its totient is φ = 22445020.

The previous prime is 44890033. The next prime is 44890049. The reversal of 44890042 is 24009844.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 40691641 + 4198401 = 6379^2 + 2049^2 .

It is a junction number, because it is equal to n+sod(n) for n = 44889986 and 44890013.

It is not an unprimeable number, because it can be changed into a prime (44890049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11222509 + ... + 11222512.

Almost surely, 2^44890042 is an apocalyptic number.

44890042 is a deficient number, since it is larger than the sum of its proper divisors (22445024).

44890042 is a wasteful number, since it uses less digits than its factorization.

44890042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22445023.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 44890042 is about 6700.0031343276. The cubic root of 44890042 is about 355.3993838810.

Adding to 44890042 its reverse (24009844), we get a palindrome (68899886).

The spelling of 44890042 in words is "forty-four million, eight hundred ninety thousand, forty-two".