1905478232 has 32 divisors (see below), whose sum is σ = 4298073600. Its totient is φ = 773652384.

The previous prime is 1905478231. The next prime is 1905478243. The reversal of 1905478232 is 2328745091.

It is a self number, because there is not a number n which added to its sum of digits gives 1905478232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1905478231) 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, 894368 + ... + 896495.

It is an arithmetic number, because the mean of its divisors is an integer number (134314800).

Almost surely, 2^1905478232 is an apocalyptic number.

It is an amenable number.

1905478232 is an abundant number, since it is smaller than the sum of its proper divisors (2392595368).

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

1905478232 is a wasteful number, since it uses less digits than its factorization.

1905478232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1790895 (or 1790891 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 1905478232 is about 43651.7838352570. The cubic root of 1905478232 is about 1239.7515613966.

The spelling of 1905478232 in words is "one billion, nine hundred five million, four hundred seventy-eight thousand, two hundred thirty-two".