1925841840 has 80 divisors (see below), whose sum is σ = 6429359328. Its totient is φ = 474052608.

The previous prime is 1925841793. The next prime is 1925841877. The reversal of 1925841840 is 481485291.

It is a tau number, because it is divible by the number of its divisors (80).

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1925841792 and 1925841801.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 305509 + ... + 311748.

Almost surely, 2^1925841840 is an apocalyptic number.

1925841840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1925841840 is an abundant number, since it is smaller than the sum of its proper divisors (4503517488).

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

1925841840 is a wasteful number, since it uses less digits than its factorization.

1925841840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617286 (or 617280 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 42.

The square root of 1925841840 is about 43884.4145454853. The cubic root of 1925841840 is about 1244.1522785159.

The spelling of 1925841840 in words is "one billion, nine hundred twenty-five million, eight hundred forty-one thousand, eight hundred forty".