2019604 has 6 divisors (see below), whose sum is σ = 3534314. Its totient is φ = 1009800.

The previous prime is 2019599. The next prime is 2019613. The reversal of 2019604 is 4069102.

It can be written as a sum of positive squares in only one way, i.e., 1817104 + 202500 = 1348^2 + 450^2 .

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, 252447 + ... + 252454.

2^2019604 is an apocalyptic number.

It is an amenable number.

2019604 is a deficient number, since it is larger than the sum of its proper divisors (1514710).

2019604 is a wasteful number, since it uses less digits than its factorization.

2019604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504905 (or 504903 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 2019604 is about 1421.1277212130. The cubic root of 2019604 is about 126.4024254462.

The spelling of 2019604 in words is "two million, nineteen thousand, six hundred four".