662540800 has 120 divisors (see below), whose sum is σ = 1656179712. Its totient is φ = 262656000.

The previous prime is 662540761. The next prime is 662540803. The reversal of 662540800 is 8045266.

It is not an unprimeable number, because it can be changed into a prime (662540803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2444665 + ... + 2444935.

Almost surely, 2^662540800 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 662540800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (828089856).

662540800 is an abundant number, since it is smaller than the sum of its proper divisors (993638912).

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

662540800 is a wasteful number, since it uses less digits than its factorization.

662540800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490 (or 469 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 662540800 is about 25739.8679095290. The cubic root of 662540800 is about 871.7745959499.

The spelling of 662540800 in words is "six hundred sixty-two million, five hundred forty thousand, eight hundred".