1939423823400 has 192 divisors, whose sum is σ = 6897841188480. Its totient is φ = 441571737600.

The previous prime is 1939423823369. The next prime is 1939423823417. The reversal of 1939423823400 is 43283249391.

It is a super-2 number, since 2×1939423823400² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1939423823400.

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, 181020 + ... + 1977780.

It is an arithmetic number, because the mean of its divisors is an integer number (35926256190).

Almost surely, 2^{1939423823400} is an apocalyptic number.

1939423823400 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 1939423823400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3448920594240).

1939423823400 is an abundant number, since it is smaller than the sum of its proper divisors (4958417365080).

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

1939423823400 is a wasteful number, since it uses less digits than its factorization.

1939423823400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1797044 (or 1797035 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 48.

The spelling of 1939423823400 in words is "one trillion, nine hundred thirty-nine billion, four hundred twenty-three million, eight hundred twenty-three thousand, four hundred".