1044023400420 has 384 divisors, whose sum is σ = 4031032061952. Its totient is φ = 194839603200.

The previous prime is 1044023400403. The next prime is 1044023400443. The reversal of 1044023400420 is 240043204401.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1987315 + ... + 2457125.

It is an arithmetic number, because the mean of its divisors is an integer number (10497479328).

Almost surely, 2^{1044023400420} is an apocalyptic number.

1044023400420 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 1044023400420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2015516030976).

1044023400420 is an abundant number, since it is smaller than the sum of its proper divisors (2987008661532).

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

1044023400420 is a wasteful number, since it uses less digits than its factorization.

1044023400420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469891 (or 469889 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 1044023400420 its reverse (240043204401), we get a palindrome (1284066604821).

The spelling of 1044023400420 in words is "one trillion, forty-four billion, twenty-three million, four hundred thousand, four hundred twenty".