1040005668 has 48 divisors (see below), whose sum is σ = 2767080960. Its totient is φ = 301177344.

The previous prime is 1040005661. The next prime is 1040005709. The reversal of 1040005668 is 8665000401.

It is a super-2 number, since 2×1040005668² = 2163223578944252448, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1040005661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 193428 + ... + 198731.

It is an arithmetic number, because the mean of its divisors is an integer number (57647520).

Almost surely, 2^1040005668 is an apocalyptic number.

It is an amenable number.

1040005668 is an abundant number, since it is smaller than the sum of its proper divisors (1727075292).

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

1040005668 is a wasteful number, since it uses less digits than its factorization.

1040005668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392196 (or 392194 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 1040005668 is about 32249.1188716839. The cubic root of 1040005668 is about 1013.1612443898.

The spelling of 1040005668 in words is "one billion, forty million, five thousand, six hundred sixty-eight".