44140442 has 4 divisors (see below), whose sum is σ = 66210666. Its totient is φ = 22070220.

The previous prime is 44140429. The next prime is 44140463. The reversal of 44140442 is 24404144.

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., 34586161 + 9554281 = 5881^2 + 3091^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11035109 + ... + 11035112.

Almost surely, 2^44140442 is an apocalyptic number.

44140442 is a deficient number, since it is larger than the sum of its proper divisors (22070224).

44140442 is a wasteful number, since it uses less digits than its factorization.

44140442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22070223.

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 44140442 is about 6643.8273607914. The cubic root of 44140442 is about 353.4100476204.

Adding to 44140442 its reverse (24404144), we get a palindrome (68544586).

The spelling of 44140442 in words is "forty-four million, one hundred forty thousand, four hundred forty-two".