1042646 has 16 divisors (see below), whose sum is σ = 1729728. Its totient is φ = 467400.

The previous prime is 1042633. The next prime is 1042681. The reversal of 1042646 is 6462401.

It is a happy number.

It is a super-2 number, since 2×1042646² = 2174221362632, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1541 + ... + 2111.

It is an arithmetic number, because the mean of its divisors is an integer number (108108).

2^1042646 is an apocalyptic number.

1042646 is a deficient number, since it is larger than the sum of its proper divisors (687082).

1042646 is a wasteful number, since it uses less digits than its factorization.

1042646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 1042646 is about 1021.1003868377. The cubic root of 1042646 is about 101.4017913259.

The spelling of 1042646 in words is "one million, forty-two thousand, six hundred forty-six".