1872012 has 24 divisors (see below), whose sum is σ = 4429936. Its totient is φ = 615168.

The previous prime is 1872007. The next prime is 1872043. The reversal of 1872012 is 2102781.

It is a self number, because there is not a number n which added to its sum of digits gives 1872012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193 + ... + 1944.

2^1872012 is an apocalyptic number.

1872012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1872012 is an abundant number, since it is smaller than the sum of its proper divisors (2557924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1872012 is a wasteful number, since it uses less digits than its factorization.

1872012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2217 (or 2215 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 21.

The square root of 1872012 is about 1368.2148954020. The cubic root of 1872012 is about 123.2450662980.

Adding to 1872012 its reverse (2102781), we get a palindrome (3974793).

The spelling of 1872012 in words is "one million, eight hundred seventy-two thousand, twelve".