1912004 has 6 divisors (see below), whose sum is σ = 3346014. Its totient is φ = 956000.

The previous prime is 1911991. The next prime is 1912019. The reversal of 1912004 is 4002191.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1827904 + 84100 = 1352^2 + 290^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 238997 + ... + 239004.

It is an arithmetic number, because the mean of its divisors is an integer number (557669).

2^1912004 is an apocalyptic number.

It is an amenable number.

1912004 is a deficient number, since it is larger than the sum of its proper divisors (1434010).

1912004 is a wasteful number, since it uses less digits than its factorization.

1912004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478005 (or 478003 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1912004 is about 1382.7523277869. The cubic root of 1912004 is about 124.1165224505.

Adding to 1912004 its reverse (4002191), we get a palindrome (5914195).

The spelling of 1912004 in words is "one million, nine hundred twelve thousand, four".