4011822 has 16 divisors (see below), whose sum is σ = 8915280. Its totient is φ = 1337256.

The previous prime is 4011817. The next prime is 4011827. The reversal of 4011822 is 2281104.

It is an interprime number because it is at equal distance from previous prime (4011817) and next prime (4011827).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 4011795 and 4011804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4011827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37093 + ... + 37200.

It is an arithmetic number, because the mean of its divisors is an integer number (557205).

Almost surely, 2^4011822 is an apocalyptic number.

4011822 is an abundant number, since it is smaller than the sum of its proper divisors (4903458).

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

4011822 is a wasteful number, since it uses less digits than its factorization.

4011822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74304 (or 74298 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 4011822 is about 2002.9533194760. The cubic root of 4011822 is about 158.8963368439.

Adding to 4011822 its reverse (2281104), we get a palindrome (6292926).

The spelling of 4011822 in words is "four million, eleven thousand, eight hundred twenty-two".