1000032440400 has 180 divisors, whose sum is σ = 3966160505632. Its totient is φ = 228578837760.

The previous prime is 1000032440399. The next prime is 1000032440443. The reversal of 1000032440400 is 40442300001.

It is a tau number, because it is divible by the number of its divisors (180).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 19816714 + ... + 19867113.

Almost surely, 2^{1000032440400} is an apocalyptic number.

1000032440400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000032440400 is an abundant number, since it is smaller than the sum of its proper divisors (2966128065232).

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

1000032440400 is a wasteful number, since it uses less digits than its factorization.

1000032440400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39683858 (or 39683844 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 1000032440400 its reverse (40442300001), we get a palindrome (1040474740401).

The spelling of 1000032440400 in words is "one trillion, thirty-two million, four hundred forty thousand, four hundred".