1662522444 has 144 divisors (see below), whose sum is σ = 4719091104. Its totient is φ = 489216000.

The previous prime is 1662522419. The next prime is 1662522461. The reversal of 1662522444 is 4442252661.

1662522444 is a `hidden beast` number, since 1 + 6 + 625 + 2 + 24 + 4 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1662522399 and 1662522408.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 2371294 + ... + 2371994.

It is an arithmetic number, because the mean of its divisors is an integer number (32771466).

Almost surely, 2^1662522444 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 1662522444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2359545552).

1662522444 is an abundant number, since it is smaller than the sum of its proper divisors (3056568660).

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

1662522444 is a wasteful number, since it uses less digits than its factorization.

1662522444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888 (or 883 counting only the distinct ones).

The product of its digits is 92160, while the sum is 36.

The square root of 1662522444 is about 40774.0413008080. The cubic root of 1662522444 is about 1184.6475820039.

The spelling of 1662522444 in words is "one billion, six hundred sixty-two million, five hundred twenty-two thousand, four hundred forty-four".