1642268 has 12 divisors (see below), whose sum is σ = 3043152. Its totient is φ = 772800.

The previous prime is 1642259. The next prime is 1642273. The reversal of 1642268 is 8622461.

It is a self number, because there is not a number n which added to its sum of digits gives 1642268.

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, 12008 + ... + 12143.

It is an arithmetic number, because the mean of its divisors is an integer number (253596).

2^1642268 is an apocalyptic number.

It is an amenable number.

1642268 is a deficient number, since it is larger than the sum of its proper divisors (1400884).

1642268 is a wasteful number, since it uses less digits than its factorization.

1642268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24172 (or 24170 counting only the distinct ones).

The product of its digits is 4608, while the sum is 29.

The square root of 1642268 is about 1281.5100467807. The cubic root of 1642268 is about 117.9817074009.

The spelling of 1642268 in words is "one million, six hundred forty-two thousand, two hundred sixty-eight".