662644340 has 48 divisors (see below), whose sum is σ = 1425816000. Its totient is φ = 258600192.

The previous prime is 662644327. The next prime is 662644357. The reversal of 662644340 is 43446266.

It is a self number, because there is not a number n which added to its sum of digits gives 662644340.

It is a congruent 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, 159611 + ... + 163709.

It is an arithmetic number, because the mean of its divisors is an integer number (29704500).

Almost surely, 2^662644340 is an apocalyptic number.

It is an amenable number.

662644340 is an abundant number, since it is smaller than the sum of its proper divisors (763171660).

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

662644340 is a wasteful number, since it uses less digits than its factorization.

662644340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4304 (or 4302 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 35.

The square root of 662644340 is about 25741.8791077885. The cubic root of 662644340 is about 871.8200064062.

The spelling of 662644340 in words is "six hundred sixty-two million, six hundred forty-four thousand, three hundred forty".