2044403542 has 4 divisors (see below), whose sum is σ = 3066605316. Its totient is φ = 1022201770.

The previous prime is 2044403467. The next prime is 2044403549. The reversal of 2044403542 is 2453044402.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2044403542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2044403549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511100884 + ... + 511100887.

It is an arithmetic number, because the mean of its divisors is an integer number (766651329).

Almost surely, 2^2044403542 is an apocalyptic number.

2044403542 is a deficient number, since it is larger than the sum of its proper divisors (1022201774).

2044403542 is a wasteful number, since it uses less digits than its factorization.

2044403542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1022201773.

The product of its (nonzero) digits is 15360, while the sum is 28.

The square root of 2044403542 is about 45215.0809133413. The cubic root of 2044403542 is about 1269.1770438773.

Adding to 2044403542 its reverse (2453044402), we get a palindrome (4497447944).

The spelling of 2044403542 in words is "two billion, forty-four million, four hundred three thousand, five hundred forty-two".