1042881646 has 8 divisors (see below), whose sum is σ = 1564470864. Its totient is φ = 521391360.

The previous prime is 1042881613. The next prime is 1042881659. The reversal of 1042881646 is 6461882401.

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

It is a junction number, because it is equal to n+sod(n) for n = 1042881599 and 1042881608.

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, 13351 + ... + 47581.

It is an arithmetic number, because the mean of its divisors is an integer number (195558858).

Almost surely, 2^1042881646 is an apocalyptic number.

1042881646 is a deficient number, since it is larger than the sum of its proper divisors (521589218).

1042881646 is a wasteful number, since it uses less digits than its factorization.

1042881646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49466.

The product of its (nonzero) digits is 73728, while the sum is 40.

The square root of 1042881646 is about 32293.6781119773. The cubic root of 1042881646 is about 1014.0942994489.

The spelling of 1042881646 in words is "one billion, forty-two million, eight hundred eighty-one thousand, six hundred forty-six".