1630004 has 6 divisors (see below), whose sum is σ = 2852514. Its totient is φ = 815000.

The previous prime is 1629997. The next prime is 1630019. The reversal of 1630004 is 4000361.

It can be written as a sum of positive squares in only one way, i.e., 1567504 + 62500 = 1252^2 + 250^2 .

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, 203747 + ... + 203754.

It is an arithmetic number, because the mean of its divisors is an integer number (475419).

2^1630004 is an apocalyptic number.

It is an amenable number.

1630004 is a deficient number, since it is larger than the sum of its proper divisors (1222510).

1630004 is a wasteful number, since it uses less digits than its factorization.

1630004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407505 (or 407503 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1630004 is about 1276.7161000003. The cubic root of 1630004 is about 117.6872884575.

Adding to 1630004 its reverse (4000361), we get a palindrome (5630365).

The spelling of 1630004 in words is "one million, six hundred thirty thousand, four".