4009822 has 4 divisors (see below), whose sum is σ = 6014736. Its totient is φ = 2004910.

The previous prime is 4009799. The next prime is 4009823. The reversal of 4009822 is 2289004.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4009823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1002454 + ... + 1002457.

It is an arithmetic number, because the mean of its divisors is an integer number (1503684).

Almost surely, 2^4009822 is an apocalyptic number.

4009822 is a deficient number, since it is larger than the sum of its proper divisors (2004914).

4009822 is a wasteful number, since it uses less digits than its factorization.

4009822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2004913.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 4009822 is about 2002.4539944778. The cubic root of 4009822 is about 158.8699277711.

The spelling of 4009822 in words is "four million, nine thousand, eight hundred twenty-two".