1904013 has 16 divisors (see below), whose sum is σ = 2853760. Its totient is φ = 1254528.

The previous prime is 1904011. The next prime is 1904027. The reversal of 1904013 is 3104091.

It is not a de Polignac number, because 1904013 - 2¹ = 1904011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1904011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2256 + ... + 2982.

It is an arithmetic number, because the mean of its divisors is an integer number (178360).

2^1904013 is an apocalyptic number.

1904013 is the 873-rd heptagonal number.

It is an amenable number.

1904013 is a deficient number, since it is larger than the sum of its proper divisors (949747).

1904013 is an equidigital number, since it uses as much as digits as its factorization.

1904013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833 (or 827 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 1904013 is about 1379.8597754845. The cubic root of 1904013 is about 123.9433707775.

The spelling of 1904013 in words is "one million, nine hundred four thousand, thirteen".