1642246 has 16 divisors (see below), whose sum is σ = 2707200. Its totient is φ = 743688.

The previous prime is 1642243. The next prime is 1642247. The reversal of 1642246 is 6422461.

It is a self number, because there is not a number n which added to its sum of digits gives 1642246.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1642243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66 + ... + 1813.

It is an arithmetic number, because the mean of its divisors is an integer number (169200).

2^1642246 is an apocalyptic number.

1642246 is a deficient number, since it is larger than the sum of its proper divisors (1064954).

1642246 is a wasteful number, since it uses less digits than its factorization.

1642246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1923.

The product of its digits is 2304, while the sum is 25.

The square root of 1642246 is about 1281.5014631283. The cubic root of 1642246 is about 117.9811805667.

The spelling of 1642246 in words is "one million, six hundred forty-two thousand, two hundred forty-six".