662044644 has 24 divisors (see below), whose sum is σ = 1716412320. Its totient is φ = 220681512.

The previous prime is 662044639. The next prime is 662044657. The reversal of 662044644 is 446440266.

It is a happy number.

662044644 is a `hidden beast` number, since 6 + 6 + 2 + 0 + 4 + 4 + 644 = 666.

It is a super-2 number, since 2×662044644² = 876606221298173472, which contains 22 as substring.

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 = 662044599 and 662044608.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3064914 + ... + 3065129.

It is an arithmetic number, because the mean of its divisors is an integer number (71517180).

Almost surely, 2^662044644 is an apocalyptic number.

It is an amenable number.

662044644 is an abundant number, since it is smaller than the sum of its proper divisors (1054367676).

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

662044644 is a wasteful number, since it uses less digits than its factorization.

662044644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6130056 (or 6130048 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 36.

The square root of 662044644 is about 25730.2282150781. The cubic root of 662044644 is about 871.5569267325.

The spelling of 662044644 in words is "six hundred sixty-two million, forty-four thousand, six hundred forty-four".