1642466 has 8 divisors (see below), whose sum is σ = 2815680. Its totient is φ = 703908.

The previous prime is 1642463. The next prime is 1642481. The reversal of 1642466 is 6642461.

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

It is a super-2 number, since 2×1642466² = 5395389122312, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1642463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58646 + ... + 58673.

It is an arithmetic number, because the mean of its divisors is an integer number (351960).

2^1642466 is an apocalyptic number.

1642466 is a deficient number, since it is larger than the sum of its proper divisors (1173214).

1642466 is a wasteful number, since it uses less digits than its factorization.

1642466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117328.

The product of its digits is 6912, while the sum is 29.

The square root of 1642466 is about 1281.5872970656. The cubic root of 1642466 is about 117.9864486976.

The spelling of 1642466 in words is "one million, six hundred forty-two thousand, four hundred sixty-six".