1939928 has 8 divisors (see below), whose sum is σ = 3637380. Its totient is φ = 969960.

The previous prime is 1939913. The next prime is 1939937. The reversal of 1939928 is 8299391.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121238 + ... + 121253.

2^1939928 is an apocalyptic number.

It is an amenable number.

1939928 is a deficient number, since it is larger than the sum of its proper divisors (1697452).

1939928 is a wasteful number, since it uses less digits than its factorization.

1939928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242497 (or 242493 counting only the distinct ones).

The product of its digits is 34992, while the sum is 41.

The square root of 1939928 is about 1392.8129809849. The cubic root of 1939928 is about 124.7178275088.

The spelling of 1939928 in words is "one million, nine hundred thirty-nine thousand, nine hundred twenty-eight".