1905425630 has 32 divisors (see below), whose sum is σ = 3526074720. Its totient is φ = 740810880.

The previous prime is 1905425617. The next prime is 1905425647. The reversal of 1905425630 is 365245091.

It is a congruent number.

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, 475676 + ... + 479664.

It is an arithmetic number, because the mean of its divisors is an integer number (110189835).

Almost surely, 2^1905425630 is an apocalyptic number.

1905425630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1905425630 is a deficient number, since it is larger than the sum of its proper divisors (1620649090).

1905425630 is a wasteful number, since it uses less digits than its factorization.

1905425630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5324.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 1905425630 is about 43651.1813127663. The cubic root of 1905425630 is about 1239.7401532349.

The spelling of 1905425630 in words is "one billion, nine hundred five million, four hundred twenty-five thousand, six hundred thirty".