662759406 has 48 divisors (see below), whose sum is σ = 1523558400. Its totient is φ = 207630864.

The previous prime is 662759401. The next prime is 662759407. The reversal of 662759406 is 604957266.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (662759401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35805 + ... + 51063.

It is an arithmetic number, because the mean of its divisors is an integer number (31740800).

Almost surely, 2^662759406 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 662759406, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (761779200).

662759406 is an abundant number, since it is smaller than the sum of its proper divisors (860798994).

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

662759406 is a wasteful number, since it uses less digits than its factorization.

662759406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15413 (or 15410 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The square root of 662759406 is about 25744.1140068949. The cubic root of 662759406 is about 871.8704663733.

The spelling of 662759406 in words is "six hundred sixty-two million, seven hundred fifty-nine thousand, four hundred six".