1905488530 has 128 divisors (see below), whose sum is σ = 4150621440. Its totient is φ = 622080000.

The previous prime is 1905488527. The next prime is 1905488531. The reversal of 1905488530 is 358845091.

It is not an unprimeable number, because it can be changed into a prime (1905488531) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3170230 + ... + 3170830.

It is an arithmetic number, because the mean of its divisors is an integer number (32426730).

Almost surely, 2^1905488530 is an apocalyptic number.

1905488530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1905488530 is an abundant number, since it is smaller than the sum of its proper divisors (2245132910).

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

1905488530 is a wasteful number, since it uses less digits than its factorization.

1905488530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 716.

The product of its (nonzero) digits is 172800, while the sum is 43.

The square root of 1905488530 is about 43651.9017913309. The cubic root of 1905488530 is about 1239.7537947710.

It can be divided in two parts, 19054 and 88530, that added together give a square (107584 = 328²).

The spelling of 1905488530 in words is "one billion, nine hundred five million, four hundred eighty-eight thousand, five hundred thirty".