1042856406 has 24 divisors (see below), whose sum is σ = 2288126880. Its totient is φ = 343218096.

The previous prime is 1042856389. The next prime is 1042856429. The reversal of 1042856406 is 6046582401.

1042856406 is a `hidden beast` number, since 1 + 0 + 4 + 2 + 8 + 5 + 640 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 365265 + ... + 368108.

It is an arithmetic number, because the mean of its divisors is an integer number (95338620).

Almost surely, 2^1042856406 is an apocalyptic number.

1042856406 is an abundant number, since it is smaller than the sum of its proper divisors (1245270474).

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

1042856406 is a wasteful number, since it uses less digits than its factorization.

1042856406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733460 (or 733457 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 1042856406 is about 32293.2873210517. The cubic root of 1042856406 is about 1014.0861182883.

The spelling of 1042856406 in words is "one billion, forty-two million, eight hundred fifty-six thousand, four hundred six".