1864012 has 12 divisors (see below), whose sum is σ = 3404016. Its totient is φ = 891440.

The previous prime is 1864003. The next prime is 1864039. The reversal of 1864012 is 2104681.

It is a super-2 number, since 2×1864012² = 6949081472288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10039 + ... + 10222.

It is an arithmetic number, because the mean of its divisors is an integer number (283668).

2^1864012 is an apocalyptic number.

It is an amenable number.

1864012 is a deficient number, since it is larger than the sum of its proper divisors (1540004).

1864012 is a wasteful number, since it uses less digits than its factorization.

1864012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20288 (or 20286 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 1864012 is about 1365.2882479535. The cubic root of 1864012 is about 123.0692539693.

Adding to 1864012 its reverse (2104681), we get a palindrome (3968693).

The spelling of 1864012 in words is "one million, eight hundred sixty-four thousand, twelve".