1040786478 has 48 divisors (see below), whose sum is σ = 2491515936. Its totient is φ = 312322560.

The previous prime is 1040786473. The next prime is 1040786479. The reversal of 1040786478 is 8746870401.

1040786478 is a `hidden beast` number, since 104 + 0 + 78 + 6 + 478 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040786473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66903 + ... + 80978.

It is an arithmetic number, because the mean of its divisors is an integer number (51906582).

Almost surely, 2^1040786478 is an apocalyptic number.

1040786478 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1040786478 is an abundant number, since it is smaller than the sum of its proper divisors (1450729458).

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

1040786478 is a wasteful number, since it uses less digits than its factorization.

1040786478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147929 (or 147926 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 45.

The square root of 1040786478 is about 32261.2225124839. Note that the first 3 decimals coincide. The cubic root of 1040786478 is about 1013.4147329242.

The spelling of 1040786478 in words is "one billion, forty million, seven hundred eighty-six thousand, four hundred seventy-eight".