44251642 has 4 divisors (see below), whose sum is σ = 66377466. Its totient is φ = 22125820.

The previous prime is 44251637. The next prime is 44251643. The reversal of 44251642 is 24615244.

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., 40335201 + 3916441 = 6351^2 + 1979^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 44251642.

It is not an unprimeable number, because it can be changed into a prime (44251643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11062909 + ... + 11062912.

Almost surely, 2^44251642 is an apocalyptic number.

44251642 is a deficient number, since it is larger than the sum of its proper divisors (22125824).

44251642 is a wasteful number, since it uses less digits than its factorization.

44251642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22125823.

The product of its digits is 7680, while the sum is 28.

The square root of 44251642 is about 6652.1907669579. The cubic root of 44251642 is about 353.7065726843.

Adding to 44251642 its reverse (24615244), we get a palindrome (68866886).

The spelling of 44251642 in words is "forty-four million, two hundred fifty-one thousand, six hundred forty-two".