1928488 has 8 divisors (see below), whose sum is σ = 3615930. Its totient is φ = 964240.

The previous prime is 1928473. The next prime is 1928489. The reversal of 1928488 is 8848291.

It can be written as a sum of positive squares in only one way, i.e., 1085764 + 842724 = 1042^2 + 918^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1928488² = 7438131932288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1928488.

It is not an unprimeable number, because it can be changed into a prime (1928489) 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 as a sum of consecutive naturals, namely, 120523 + ... + 120538.

2^1928488 is an apocalyptic number.

It is an amenable number.

1928488 is a deficient number, since it is larger than the sum of its proper divisors (1687442).

1928488 is a wasteful number, since it uses less digits than its factorization.

1928488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241067 (or 241063 counting only the distinct ones).

The product of its digits is 36864, while the sum is 40.

The square root of 1928488 is about 1388.7001116152. The cubic root of 1928488 is about 124.4721850950.

The spelling of 1928488 in words is "one million, nine hundred twenty-eight thousand, four hundred eighty-eight".