1940021623800 has 288 divisors, whose sum is σ = 7027835658480. Its totient is φ = 476766259200.

The previous prime is 1940021623711. The next prime is 1940021623801. The reversal of 1940021623800 is 83261200491.

1940021623800 is a `hidden beast` number, since 1 + 9 + 4 + 0 + 0 + 21 + 623 + 8 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1940021623801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 14370615 + ... + 14504985.

Almost surely, 2^{1940021623800} is an apocalyptic number.

1940021623800 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 1940021623800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3513917829240).

1940021623800 is an abundant number, since it is smaller than the sum of its proper divisors (5087814034680).

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

1940021623800 is a wasteful number, since it uses less digits than its factorization.

1940021623800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135023 (or 135011 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The spelling of 1940021623800 in words is "one trillion, nine hundred forty billion, twenty-one million, six hundred twenty-three thousand, eight hundred".