1642928 has 20 divisors (see below), whose sum is σ = 3638160. Its totient is φ = 704064.

The previous prime is 1642919. The next prime is 1642939. The reversal of 1642928 is 8292461.

It is a junction number, because it is equal to n+sod(n) for n = 1642894 and 1642903.

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, 7223 + ... + 7446.

It is an arithmetic number, because the mean of its divisors is an integer number (181908).

2^1642928 is an apocalyptic number.

It is an amenable number.

1642928 is an abundant number, since it is smaller than the sum of its proper divisors (1995232).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1642928 is a wasteful number, since it uses less digits than its factorization.

1642928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14684 (or 14678 counting only the distinct ones).

The product of its digits is 6912, while the sum is 32.

The square root of 1642928 is about 1281.7675296246. The cubic root of 1642928 is about 117.9975102414.

The spelling of 1642928 in words is "one million, six hundred forty-two thousand, nine hundred twenty-eight".