1905226368 has 128 divisors (see below), whose sum is σ = 5355571200. Its totient is φ = 598440960.

The previous prime is 1905226291. The next prime is 1905226391. The reversal of 1905226368 is 8636225091.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1626423 + ... + 1627593.

It is an arithmetic number, because the mean of its divisors is an integer number (41840400).

Almost surely, 2^1905226368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1905226368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2677785600).

1905226368 is an abundant number, since it is smaller than the sum of its proper divisors (3450344832).

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

1905226368 is a wasteful number, since it uses less digits than its factorization.

1905226368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1430 (or 1418 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 1905226368 is about 43648.8988177251. The cubic root of 1905226368 is about 1239.6969359942.

The spelling of 1905226368 in words is "one billion, nine hundred five million, two hundred twenty-six thousand, three hundred sixty-eight".