1925881494 has 32 divisors (see below), whose sum is σ = 4104760320. Its totient is φ = 600982272.

The previous prime is 1925881493. The next prime is 1925881519. The reversal of 1925881494 is 4941885291.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1925881493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141979 + ... + 154950.

It is an arithmetic number, because the mean of its divisors is an integer number (128273760).

Almost surely, 2^1925881494 is an apocalyptic number.

1925881494 is an abundant number, since it is smaller than the sum of its proper divisors (2178878826).

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

1925881494 is a wasteful number, since it uses less digits than its factorization.

1925881494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297004.

The product of its digits is 829440, while the sum is 51.

The square root of 1925881494 is about 43884.8663436497. The cubic root of 1925881494 is about 1244.1608176864.

The spelling of 1925881494 in words is "one billion, nine hundred twenty-five million, eight hundred eighty-one thousand, four hundred ninety-four".