1042405646 has 8 divisors (see below), whose sum is σ = 1565644080. Its totient is φ = 520524288.

The previous prime is 1042405591. The next prime is 1042405657. The reversal of 1042405646 is 6465042401.

1042405646 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 337346 + ... + 340421.

It is an arithmetic number, because the mean of its divisors is an integer number (195705510).

Almost surely, 2^1042405646 is an apocalyptic number.

1042405646 is a deficient number, since it is larger than the sum of its proper divisors (523238434).

1042405646 is an equidigital number, since it uses as much as digits as its factorization.

1042405646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678538.

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 1042405646 is about 32286.3074073205. The cubic root of 1042405646 is about 1013.9399890828.

The spelling of 1042405646 in words is "one billion, forty-two million, four hundred five thousand, six hundred forty-six".