1928264 has 16 divisors (see below), whose sum is σ = 3893820. Its totient is φ = 889920.

The previous prime is 1928261. The next prime is 1928287. The reversal of 1928264 is 4628291.

It can be written as a sum of positive squares in 2 ways, for example, as 1844164 + 84100 = 1358^2 + 290^2 .

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 1928264.

It is not an unprimeable number, because it can be changed into a prime (1928261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9167 + ... + 9374.

2^1928264 is an apocalyptic number.

It is an amenable number.

1928264 is an abundant number, since it is smaller than the sum of its proper divisors (1965556).

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

1928264 is a wasteful number, since it uses less digits than its factorization.

1928264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18560 (or 18556 counting only the distinct ones).

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

The square root of 1928264 is about 1388.6194583110. The cubic root of 1928264 is about 124.4673656286.

The spelling of 1928264 in words is "one million, nine hundred twenty-eight thousand, two hundred sixty-four".