1044422400 has 432 divisors, whose sum is σ = 4156678400. Its totient is φ = 225607680.

The previous prime is 1044422329. The next prime is 1044422437. The reversal of 1044422400 is 42244401.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2553396 + ... + 2553804.

Almost surely, 2^1044422400 is an apocalyptic number.

1044422400 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 1044422400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2078339200).

1044422400 is an abundant number, since it is smaller than the sum of its proper divisors (3112256000).

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

1044422400 is a wasteful number, since it uses less digits than its factorization.

1044422400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464 (or 445 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 1044422400 is about 32317.5246576838. The cubic root of 1044422400 is about 1014.5934615608.

Adding to 1044422400 its reverse (42244401), we get a palindrome (1086666801).

The spelling of 1044422400 in words is "one billion, forty-four million, four hundred twenty-two thousand, four hundred".