2022253440 has 64 divisors (see below), whose sum is σ = 6445938960. Its totient is φ = 539267072.

The previous prime is 2022253399. The next prime is 2022253447. The reversal of 2022253440 is 443522202.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 2022253440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2022253447) 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, 524709 + ... + 528548.

Almost surely, 2^2022253440 is an apocalyptic number.

2022253440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2022253440 is an abundant number, since it is smaller than the sum of its proper divisors (4423685520).

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

2022253440 is a wasteful number, since it uses less digits than its factorization.

2022253440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1053279 (or 1053267 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 2022253440 is about 44969.4723117806. The cubic root of 2022253440 is about 1264.5767543630.

Adding to 2022253440 its reverse (443522202), we get a palindrome (2465775642).

The spelling of 2022253440 in words is "two billion, twenty-two million, two hundred fifty-three thousand, four hundred forty".