1908012 has 48 divisors (see below), whose sum is σ = 4838400. Its totient is φ = 582912.

The previous prime is 1907993. The next prime is 1908013. The reversal of 1908012 is 2108091.

It is a self number, because there is not a number n which added to its sum of digits gives 1908012.

It is not an unprimeable number, because it can be changed into a prime (1908013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9489 + ... + 9687.

It is an arithmetic number, because the mean of its divisors is an integer number (100800).

2^1908012 is an apocalyptic number.

1908012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

1908012 is the 1128-th pentagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1908012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2419200).

1908012 is an abundant number, since it is smaller than the sum of its proper divisors (2930388).

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

1908012 is a wasteful number, since it uses less digits than its factorization.

1908012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270 (or 268 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 21.

The square root of 1908012 is about 1381.3080757022. The cubic root of 1908012 is about 124.0300828850.

The spelling of 1908012 in words is "one million, nine hundred eight thousand, twelve".