1860004 has 18 divisors (see below), whose sum is σ = 3459890. Its totient is φ = 874752.

The previous prime is 1859999. The next prime is 1860007. The reversal of 1860004 is 4000681.

It can be written as a sum of positive squares in 3 ways, for example, as 1327104 + 532900 = 1152^2 + 730^2 .

It is a super-2 number, since 2×1860004² = 6919229760032, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1860007) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 352 + ... + 1960.

2^1860004 is an apocalyptic number.

It is an amenable number.

1860004 is a deficient number, since it is larger than the sum of its proper divisors (1599886).

1860004 is a wasteful number, since it uses less digits than its factorization.

1860004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1647 (or 1628 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1860004 is about 1363.8196361689. The cubic root of 1860004 is about 122.9809828047.

Adding to 1860004 its reverse (4000681), we get a palindrome (5860685).

The spelling of 1860004 in words is "one million, eight hundred sixty thousand, four".