1604494 has 16 divisors (see below), whose sum is σ = 2612736. Its totient is φ = 736000.

The previous prime is 1604479. The next prime is 1604497. The reversal of 1604494 is 4944061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1604497) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 819 + ... + 1969.

It is an arithmetic number, because the mean of its divisors is an integer number (163296).

2^1604494 is an apocalyptic number.

1604494 is a deficient number, since it is larger than the sum of its proper divisors (1008242).

1604494 is a wasteful number, since it uses less digits than its factorization.

1604494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1211.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 1604494 is about 1266.6862279191. The cubic root of 1604494 is about 117.0701116289.

The spelling of 1604494 in words is "one million, six hundred four thousand, four hundred ninety-four".