1945812 has 24 divisors (see below), whose sum is σ = 4953312. Its totient is φ = 589600.

The previous prime is 1945799. The next prime is 1945817. The reversal of 1945812 is 2185491.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1945812.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1945817) 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 7 ways as a sum of consecutive naturals, for example, 7239 + ... + 7502.

It is an arithmetic number, because the mean of its divisors is an integer number (206388).

2^1945812 is an apocalyptic number.

1945812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1945812 is an abundant number, since it is smaller than the sum of its proper divisors (3007500).

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

1945812 is a wasteful number, since it uses less digits than its factorization.

1945812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14759 (or 14757 counting only the distinct ones).

The product of its digits is 2880, while the sum is 30.

The square root of 1945812 is about 1394.9236538248. The cubic root of 1945812 is about 124.8437942127.

It can be divided in two parts, 194 and 5812, that added together give a palindrome (6006).

The spelling of 1945812 in words is "one million, nine hundred forty-five thousand, eight hundred twelve".