1945004 has 12 divisors (see below), whose sum is σ = 3604104. Its totient is φ = 915264.

The previous prime is 1945003. The next prime is 1945007. The reversal of 1945004 is 4005491.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1945003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14234 + ... + 14369.

It is an arithmetic number, because the mean of its divisors is an integer number (300342).

2^1945004 is an apocalyptic number.

It is an amenable number.

1945004 is a deficient number, since it is larger than the sum of its proper divisors (1659100).

1945004 is a wasteful number, since it uses less digits than its factorization.

1945004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28624 (or 28622 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1945004 is about 1394.6340021669. The cubic root of 1945004 is about 124.8265113248.

The spelling of 1945004 in words is "one million, nine hundred forty-five thousand, four".