1940249520392 has 8 divisors (see below), whose sum is σ = 3637967850750. Its totient is φ = 970124760192.

The previous prime is 1940249520373. The next prime is 1940249520397. The reversal of 1940249520392 is 2930259420491.

It can be written as a sum of positive squares in only one way, i.e., 1901878195396 + 38371324996 = 1379086^2 + 195886^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 1940249520392.

It is not an unprimeable number, because it can be changed into a prime (1940249520397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121265595017 + ... + 121265595032.

Almost surely, 2^{1940249520392} is an apocalyptic number.

It is an amenable number.

1940249520392 is a deficient number, since it is larger than the sum of its proper divisors (1697718330358).

1940249520392 is a wasteful number, since it uses less digits than its factorization.

1940249520392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242531190055 (or 242531190051 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 50.

Subtracting 1940249520392 from its reverse (2930259420491), we obtain a palindrome (990009900099).

The spelling of 1940249520392 in words is "one trillion, nine hundred forty billion, two hundred forty-nine million, five hundred twenty thousand, three hundred ninety-two".