2022156642 has 32 divisors (see below), whose sum is σ = 4603806720. Its totient is φ = 586131920.

The previous prime is 2022156637. The next prime is 2022156673. The reversal of 2022156642 is 2466512202.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 664542 + ... + 667577.

It is an arithmetic number, because the mean of its divisors is an integer number (143868960).

Almost surely, 2^2022156642 is an apocalyptic number.

2022156642 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2022156642 is an abundant number, since it is smaller than the sum of its proper divisors (2581650078).

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

2022156642 is a wasteful number, since it uses less digits than its factorization.

2022156642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1332158.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 2022156642 is about 44968.3960354380. The cubic root of 2022156642 is about 1264.5565771271.

Adding to 2022156642 its reverse (2466512202), we get a palindrome (4488668844).

The spelling of 2022156642 in words is "two billion, twenty-two million, one hundred fifty-six thousand, six hundred forty-two".