1938928 has 20 divisors (see below), whose sum is σ = 3783240. Its totient is φ = 962624.

The previous prime is 1938907. The next prime is 1938949. The reversal of 1938928 is 8298391.

It is an interprime number because it is at equal distance from previous prime (1938907) and next prime (1938949).

Its product of digits (31104) is a multiple of the sum of its prime factors (864).

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, 2526 + ... + 3202.

It is an arithmetic number, because the mean of its divisors is an integer number (189162).

2^1938928 is an apocalyptic number.

It is an amenable number.

1938928 is a deficient number, since it is larger than the sum of its proper divisors (1844312).

1938928 is a wasteful number, since it uses less digits than its factorization.

1938928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864 (or 858 counting only the distinct ones).

The product of its digits is 31104, while the sum is 40.

The square root of 1938928 is about 1392.4539489692. The cubic root of 1938928 is about 124.6963938501.

The spelling of 1938928 in words is "one million, nine hundred thirty-eight thousand, nine hundred twenty-eight".