1904872 has 8 divisors (see below), whose sum is σ = 3571650. Its totient is φ = 952432.

The previous prime is 1904869. The next prime is 1904879. The reversal of 1904872 is 2784091.

It can be written as a sum of positive squares in only one way, i.e., 1779556 + 125316 = 1334^2 + 354^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1904879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119047 + ... + 119062.

2^1904872 is an apocalyptic number.

It is an amenable number.

1904872 is a deficient number, since it is larger than the sum of its proper divisors (1666778).

1904872 is a wasteful number, since it uses less digits than its factorization.

1904872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238115 (or 238111 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 1904872 is about 1380.1710038977. The cubic root of 1904872 is about 123.9620070909.

The spelling of 1904872 in words is "one million, nine hundred four thousand, eight hundred seventy-two".