40002022 has 8 divisors (see below), whose sum is σ = 60030576. Its totient is φ = 19991832.

The previous prime is 40001999. The next prime is 40002023. The reversal of 40002022 is 22020004.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40002023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4303 + ... + 9925.

It is an arithmetic number, because the mean of its divisors is an integer number (7503822).

Almost surely, 2^40002022 is an apocalyptic number.

40002022 is a deficient number, since it is larger than the sum of its proper divisors (20028554).

40002022 is a wasteful number, since it uses less digits than its factorization.

40002022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9182.

The product of its (nonzero) digits is 32, while the sum is 10.

The square root of 40002022 is about 6324.7151714524. The cubic root of 40002022 is about 342.0009518572. Note that the first 3 decimals are identical.

Adding to 40002022 its reverse (22020004), we get a palindrome (62022026).

The spelling of 40002022 in words is "forty million, two thousand, twenty-two".