1044542000 has 80 divisors (see below), whose sum is σ = 2551202784. Its totient is φ = 413600000.

The previous prime is 1044541997. The next prime is 1044542017. The reversal of 1044542000 is 2454401.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 199415 + ... + 204585.

Almost surely, 2^1044542000 is an apocalyptic number.

1044542000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1044542000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1275601392).

1044542000 is an abundant number, since it is smaller than the sum of its proper divisors (1506660784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1044542000 is a wasteful number, since it uses less digits than its factorization.

1044542000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5295 (or 5279 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 1044542000 is about 32319.3749939568. The cubic root of 1044542000 is about 1014.6321881483.

Adding to 1044542000 its reverse (2454401), we get a palindrome (1046996401).

The spelling of 1044542000 in words is "one billion, forty-four million, five hundred forty-two thousand".