662022440 has 64 divisors (see below), whose sum is σ = 1549270800. Its totient is φ = 254291968.

The previous prime is 662022379. The next prime is 662022451. The reversal of 662022440 is 44220266.

662022440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 358496356 + 303526084 = 18934^2 + 17422^2 .

It is a super-2 number, since 2×662022440² = 876547422127107200, which contains 22 as substring.

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, 227072 + ... + 229968.

Almost surely, 2^662022440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 662022440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (774635400).

662022440 is an abundant number, since it is smaller than the sum of its proper divisors (887248360).

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

662022440 is a wasteful number, since it uses less digits than its factorization.

662022440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3134 (or 3130 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 662022440 is about 25729.7967345255. The cubic root of 662022440 is about 871.5471830460.

The spelling of 662022440 in words is "six hundred sixty-two million, twenty-two thousand, four hundred forty".