1081854632 has 32 divisors (see below), whose sum is σ = 2054906280. Its totient is φ = 533913600.

The previous prime is 1081854617. The next prime is 1081854643. The reversal of 1081854632 is 2364581801.

It can be written as a sum of positive squares in 4 ways, for example, as 975063076 + 106791556 = 31226^2 + 10334^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 283328 + ... + 287120.

Almost surely, 2^1081854632 is an apocalyptic number.

It is an amenable number.

1081854632 is a deficient number, since it is larger than the sum of its proper divisors (973051648).

1081854632 is a wasteful number, since it uses less digits than its factorization.

1081854632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4253 (or 4249 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 1081854632 is about 32891.5586739212. The cubic root of 1081854632 is about 1026.5725240226.

The spelling of 1081854632 in words is "one billion, eighty-one million, eight hundred fifty-four thousand, six hundred thirty-two".