1905490441 has 8 divisors (see below), whose sum is σ = 2019790080. Its totient is φ = 1791436608.

The previous prime is 1905490439. The next prime is 1905490459. The reversal of 1905490441 is 1440945091.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1905490441 - 2¹ = 1905490439 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1905490441.

It is not an unprimeable number, because it can be changed into a prime (1905490141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45361 + ... + 76606.

It is an arithmetic number, because the mean of its divisors is an integer number (252473760).

Almost surely, 2^1905490441 is an apocalyptic number.

It is an amenable number.

1905490441 is a deficient number, since it is larger than the sum of its proper divisors (114299639).

1905490441 is a wasteful number, since it uses less digits than its factorization.

1905490441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122903.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 1905490441 is about 43651.9236804061. The cubic root of 1905490441 is about 1239.7542092174.

The spelling of 1905490441 in words is "one billion, nine hundred five million, four hundred ninety thousand, four hundred forty-one".