1610404 has 6 divisors (see below), whose sum is σ = 2818214. Its totient is φ = 805200.

The previous prime is 1610387. The next prime is 1610417. The reversal of 1610404 is 4040161.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1557504 + 52900 = 1248^2 + 230^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201297 + ... + 201304.

2^1610404 is an apocalyptic number.

It is an amenable number.

1610404 is a deficient number, since it is larger than the sum of its proper divisors (1207810).

1610404 is a wasteful number, since it uses less digits than its factorization.

1610404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402605 (or 402603 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1610404 is about 1269.0169423613. The cubic root of 1610404 is about 117.2136743549.

Adding to 1610404 its reverse (4040161), we get a palindrome (5650565).

It can be divided in two parts, 16 and 10404, that multiplied together give a square (166464 = 408²).

The spelling of 1610404 in words is "one million, six hundred ten thousand, four hundred four".